All Calculators
Explore free online calculators for health, finance, education, math, utility, and everyday calculations. Get instant results with detailed formulas, FAQs, examples, and step-by-step explanations.
106 calculators available
Popular Calculators
Most frequently used calculators by our users.
Age Calculator
Calculate your exact age instantly from your date of birth. Find your age in years, months, weeks, days, hours, minutes, and seconds using our free online Age Calculator.
BMI Calculator
Calculate your Body Mass Index (BMI) instantly using your height and weight. Determine whether you are underweight, normal weight, overweight, or obese across both International WHO and Asian-specific ICMR diagnostic standards.
Percentage Calculator
Calculate percentages, percentage increases, percentage decreases, and proportional fractions instantly. Multi-mode calculator for finding 'What is X% of Y', 'X is what % of Y', and percent change.
Date Calculator
Calculate the exact difference between two dates in years, months, weeks, days, hours, and minutes. Use our free Date Calculator for date duration, countdowns, and date interval calculations.
GST Calculator
Calculate Indian Goods and Services Tax (GST) instantly for both inclusive and exclusive amounts. Breakdown base price, CGST, SGST, IGST, and total invoice value across all standard GST slabs (5%, 12%, 18%, 28%).
EMI Calculator
Calculate monthly EMI, total interest payable, and total loan repayment amount instantly. Plan home loans, car loans, and personal loans with accurate amortization breakdowns.
Mileage Calculator
Calculate your car or bike's real mileage in km/L, fuel cost per kilometre, and total trip expense from distance travelled, fuel used, and fuel price.
SIP Calculator
A free SIP Calculator built to help you plan smarter mutual fund investments. Just enter your monthly investment amount, expected rate of return, and investment duration to instantly see your total invested amount, wealth gained, and projected maturity value — making it easier to plan systematic investments and work toward long-term financial goals like retirement, education, or wealth creation.
FD Calculator
Calculate Fixed Deposit (FD) maturity amount, cumulative interest earned, and quarterly compounding returns. Compare interest rates across leading Indian public, private, and small finance banks with DICGC insurance and tax deduction guidance.
Simple Interest Calculator
Calculate simple interest, interest earned, and total maturity amount instantly.
Discount Calculator
Calculate sale prices, net savings, and successive stacked discounts (e.g. 50% + 20% off) instantly. Determine true discount percentages from MRP to checkout price.
Fuel Cost Calculator
Calculate daily, monthly, yearly fuel expenses and cost per kilometre for petrol, diesel, and CNG vehicles.
GPA Calculator
Calculate Semester Grade Point Average (SGPA), Cumulative GPA (CGPA), and percentage conversions using the University Grants Commission (UGC) 10-point Choice Based Credit System (CBCS) and US 4.0 scale.
Unit Converter
Convert length, weight, temperature, area, volume, speed, time, and data storage units instantly.
HRA Calculator
Calculate House Rent Allowance (HRA) tax exemption under Section 10(13A) of the Income Tax Act. Determine exempt HRA, taxable HRA, and tax savings across metro (50%) and non-metro (40%) cities.
Income Tax Calculator
Calculate your income tax for FY 2025-26 (AY 2026-27) under both the Old and New tax regimes. Compare your tax liability side-by-side, factor in deductions and the Section 87A rebate, and find out which regime saves you more.
Attendance Calculator
Calculate your current class attendance percentage, determine the exact number of consecutive lectures needed to reach mandatory 75% or 80% criteria, and calculate how many classes can be safely skipped.
BMR Calculator
Calculate your Basal Metabolic Rate (BMR) using the Mifflin-St Jeor Equation. Estimate the number of calories your body burns at rest and determine your daily calorie requirements based on activity level.
Calorie Calculator
Calculate your Total Daily Energy Expenditure (TDEE) and daily calorie targets for sustainable fat loss, muscle gain, or weight maintenance based on the clinical Mifflin-St Jeor equation and physical activity coefficients.
Body Fat Calculator
Calculate your body fat percentage using the U.S. Navy Method. Estimate body fat levels for men and women and determine your body fat category instantly.
CGPA Calculator
Calculate your CGPA (Cumulative Grade Point Average) and convert it into percentage instantly. Add grades and credits for multiple subjects to get accurate results.
CAGR Calculator
Calculate the compound annual growth rate of a lump-sum investment from its beginning value, ending value, and holding period. Also see profit and absolute return.
Compound Interest Calculator
Calculate compound interest, maturity amount, investment growth, and total interest earned instantly using annual, monthly, quarterly, or daily compounding.
Average Calculator
Need to find the average of a list of numbers? This free calculator instantly works out the mean, total, count, minimum, and maximum values — and shows you the full step-by-step calculation so you understand exactly how the result was reached.
Scientific Calculator
Free online Scientific Calculator (Sci Calculator / SC Calculator) for advanced mathematical calculations including trigonometry, logarithms, powers, roots, factorials, exponents, and engineering calculations.
PPF Calculator
Calculate your Public Provident Fund (PPF) maturity amount, total investment, and estimated interest earnings. Plan long-term sovereign-backed savings, tax-free returns under EEE status, and retirement corpus growth.
Inflation Calculator
Calculate the future value of money after inflation and understand how rising prices affect your purchasing power over time. Use our free Inflation Calculator to estimate inflation-adjusted values and plan your finances more effectively.
Lumpsum Calculator
Calculate the future value of a one-time mutual fund lump-sum investment. Estimate compounding growth, total wealth gained, and long-term capital accumulation across equity, debt, and hybrid assets.
SWP Calculator
Calculate monthly systematic withdrawals, capital preservation, remaining mutual fund corpus, and tax-efficient cash flow streams from your lump-sum investments.
Retirement Calculator
Calculate the retirement corpus you may need to maintain your lifestyle after retirement. Estimate future expenses, inflation-adjusted costs, retirement savings, and monthly retirement income using our free Retirement Calculator.
Fraction Calculator
Calculate fractions instantly. Add, subtract, multiply, divide, simplify fractions, convert fractions to decimals, and solve mixed fraction problems online.
Mean Median Mode Calculator
Calculate mean, median, and mode instantly from a set of numbers. Use our free Mean Median Mode Calculator to analyze data, statistics, averages, and distributions quickly and accurately.
Ratio Calculator
Calculate, simplify, compare, and solve ratios instantly. Use our free Ratio Calculator to find equivalent ratios, ratio values, proportions, and ratio relationships quickly and accurately.
Standard Deviation Calculator
Calculate standard deviation, variance, mean, and data spread instantly. Use our free Standard Deviation Calculator for statistics, research, education, and data analysis.
Quadratic Equation Calculator
Struggling with a quadratic equation? Our calculator instantly finds the roots, calculates the discriminant, tells you whether the roots are real or complex, and breaks down the parabola's key properties — perfect for students and quick problem-solving.
Permutation & Combination Calculator
Calculate permutations (nPr) and combinations (nCr) instantly. Use our free calculator for probability, statistics, mathematics, competitive exams, and data analysis.
Matrix Calculator
Perform matrix addition, subtraction, multiplication, determinant calculations, inversion, and transposition instantly using our free online Matrix Calculator.
Percentage Difference Calculator
Calculate percentage difference between two numbers instantly. Compare values, find percentage change, and analyze increases or decreases accurately using our free Percentage Difference Calculator.
Password Generator
Generate strong, secure, and random passwords instantly. Create passwords with uppercase letters, lowercase letters, numbers, and special characters for better online security.
Random Number Generator
Generate random numbers instantly between any minimum and maximum range. Perfect for games, giveaways, lotteries, statistics, and decision making.
QR Code Generator
A free, easy-to-use QR Code Generator for websites, text, emails, phone numbers, WiFi networks, and more. Create a custom QR code in seconds, preview it instantly, and download it in high resolution — perfect for business cards, posters, menus, or sharing information quickly without typing.
Prime Number Calculator
Check whether a number is prime or composite instantly. Find factors, divisors, and analyze prime numbers using our free Prime Number Calculator.
LCM Calculator
Need to find the LCM of a set of numbers fast? Our free LCM Calculator instantly calculates the Least Common Multiple of two or more numbers, with clear results perfect for homework, teaching, or quick math problem-solving.
Distance Calculator
Calculate the distance between two points instantly using the distance formula. Find distances in coordinate geometry accurately with our free Distance Calculator.
Slope Calculator
Calculate the slope of a line between two points instantly. Use our free Slope Calculator to determine slope, rise, run, and line characteristics in coordinate geometry.
Ideal Body Weight Calculator
Calculate your ideal body weight (IBW) by height and gender using the Devine, Hamwi, Robinson, and Miller formulas. Get an instant healthy weight range to guide fitness, nutrition, and weight management goals.
Water Intake Calculator
Calculate your recommended daily fluid intake based on body weight, physical exertion levels, and environmental climate factors following EFSA and National Academies hydration guidelines.
Macro Calculator
Calculate your daily macronutrient needs including protein, carbohydrates, and fats based on your calorie goals, activity level, and fitness objectives.
Protein Intake Calculator
Calculate your daily protein requirements based on body weight, activity level, and fitness goals. Determine how much protein you need for muscle gain, weight loss, recovery, and overall health.
Heart Rate Zone Calculator
Calculate your heart rate training zones based on age and resting heart rate. Optimize workouts, improve endurance, burn fat, and maximize cardiovascular fitness with personalized heart rate zones.
Lean Body Mass Calculator
Calculate your Lean Body Mass (LBM) using your height, weight, and gender. Estimate the weight of your muscles, bones, organs, and body water excluding body fat.
Waist-to-Hip Ratio Calculator
A free Waist-to-Hip Ratio (WHR) Calculator to help you understand your body fat distribution and associated health risks. Simply enter your waist and hip measurements to instantly calculate your WHR, see how it compares to standard health ranges, and learn whether your body shape may indicate a higher risk of conditions like heart disease or diabetes. Fast, accurate, and easy to use.
Sukanya Samriddhi Yojana Calculator
Calculate the maturity corpus, total investment, and compounding interest earnings for the Sukanya Samriddhi Yojana (SSY) small savings scheme for a girl child under Ministry of Finance statutory rules.
NPS Calculator
Calculate your National Pension System (NPS) maturity corpus at age 60, the 60% tax-free lump-sum withdrawal, 40% mandatory annuity allocation, and estimated lifelong monthly pension.
Gratuity Calculator
Calculate gratuity amount based on your last drawn salary and years of service. Estimate gratuity benefits instantly using the official gratuity formula.
Love Calculator
Enter two names to generate a repeatable love percentage and playful compatibility message. This private, name-based love test is free and intended for entertainment.
Friendship Calculator
Check friendship compatibility between two people using their names. Discover your friendship percentage, bond strength, and compatibility level instantly with our free Friendship Calculator — a fun way to celebrate any friendship.
Crush Calculator
Check your crush compatibility percentage instantly with our free Crush Calculator — just enter two names to discover your crush match score, relationship potential, and compatibility level. Fun, fast, and free to use anytime, anywhere, with no sign-up required!
Lucky Number Calculator
Calculate your lucky number using your date of birth. Discover your numerology number, personality traits, strengths, and life path insights instantly with our free Lucky Number Calculator.
House Construction Cost Calculator
Estimate house construction cost in India from built-up area, city tier, quality, and floors. Review per-square-foot rates plus material and labour shares.
Brick Calculator
Estimate bricks or blocks for a wall from its length, height, and thickness. Include mortar, wastage, unit price, and openings to plan quantity and cost.
Cement Calculator
Estimate 50 kg cement bags, cement weight, volume, and cost for slabs, foundations, beams, columns, and floors using project dimensions and concrete grade.
Concrete Calculator
Calculate concrete volume, cement bags, sand quantity, aggregate quantity, and material costs for slabs, foundations, columns, beams, and construction projects.
JSON Formatter
Fix, format, beautify, validate, and minify JSON data instantly with one click. Free online JSON Formatter and JSON Beautifier for developers.
UUID Generator
Generate UUID v4 identifiers instantly. Create single or multiple unique UUIDs for development, databases, APIs, testing, and distributed architecture.
Base64 Encoder Decoder
Encode text or binary data to Base64 strings and decode Base64 back to its original format instantly. Free, secure, client-side online developer utility.
URL Encoder Decoder
Encode and decode URLs instantly. Convert special characters into percent-encoded, URL-safe formats or parse encoded strings back into human-readable text.
JWT Decoder
Decode JWT tokens instantly, right in your browser — nothing is sent to a server. View the header, payload, expiration time, and issue time at a glance.
Hash Generator
Instantly generate MD5, SHA-1, SHA-256, SHA-384, and SHA-512 hashes online — completely free. Built for developers, cybersecurity professionals, students, and IT administrators who need quick, reliable hashing.
Unix Timestamp Converter
Instantly convert Unix timestamps into readable dates, or dates into Unix timestamps. Supports Epoch time, UTC, milliseconds, and other developer-friendly timestamp calculations.
Regex Tester
Test regular expressions instantly against text input. Validate patterns, find matches, and debug regex expressions online.
Diff Checker
Compare two versions of text, code, JSON, or configuration side by side or inline. Highlight added and removed lines locally, with options to ignore case or whitespace.
Gold Making Charges Calculator
Work out the real price of gold jewellery before you walk into a store. Enter the gold rate, weight, purity, making charge percentage (or flat rate), hallmarking fee, and GST — and see exactly how each rupee adds up to your final bill.
Gold Price Calculator
Find out what your gold is worth in seconds. Enter today's gold rate, weight, and purity — in grams, kilograms, tola, or ounces — and get an instant, accurate value for 24K, 22K, 18K, and 14K gold.
Silver Price Calculator
Find out what your silver is worth in seconds. Enter today's silver rate, weight, and purity — in grams, kilograms, tola, or ounces — and get an instant, accurate value for fine, sterling, and other common silver purities.
Gold GST Calculator
Work out exactly how much GST applies to your gold purchase. Select your purity, enter the gold rate, weight, and making charges — and see the 3% GST on gold value and 5% GST on making charges calculated separately, plus your final bill.
Wedding Budget Calculator
Estimate your total wedding cost in India by guest count, city tier, and style, with a category-wise breakdown covering venue, catering, décor, photography, attire, and more.
Party Budget Calculator
Estimate the total cost of a birthday, anniversary, or house party in India by guest count, venue type, and catering style, with a clear category-wise cost breakdown.
Event Cost Calculator
Estimate the total cost of a corporate or community event in India by attendee count, event type, and production level, including venue, catering, AV, and GST.
Travel Cost Calculator
Estimate the total cost of a road trip or multi-day vacation in India, covering fuel, tolls, accommodation, food, and daily expenses per traveler.
Tile Calculator
Find out exactly how many tiles, boxes, and how much grout and adhesive you need for any room. Enter your room dimensions, tile size, and a safety wastage margin — and get a clear breakdown of tiles required, boxes to buy, and estimated cost, so you don't run short mid-job or overspend on extras.
Zodiac Compatibility Calculator
Check your zodiac sign compatibility instantly with our free Zodiac Compatibility Calculator — just select two zodiac signs (or enter birth dates) to discover your love match percentage, element compatibility, and relationship potential. Fun, fast, and free to use anytime, anywhere, with no sign-up required!
Kundli Milan Calculator (Guna Milan Score)
Compare the bride's and groom's Rashi or Nakshatra to estimate an Ashtakoot Guna Milan score out of 36. Includes the eight-koota breakdown and clear limitations.
Rebar Cutting Length Calculator
Calculate the exact cutting length of reinforcement bars before fabrication. Enter the bar shape, span or member dimension, diameter, bend angles, hook type, and concrete cover — and get the cutting length, bend deductions, and steel weight, based on IS 2502 practice used across Indian construction sites.
Fertilizer Requirement Calculator
Calculate exactly how much urea, DAP, and MOP (or your preferred fertilizer sources) your field needs. Enter your crop, field area, and recommended NPK dose — get the precise fertilizer quantity required, broken down by nutrient, so you apply the right amount instead of guessing.
Road Tax Calculator
Calculate road tax, RTO registration charges, and on-road price addition for your car or bike instantly. Get accurate state-wise motor vehicle tax slabs for petrol, diesel, CNG, and electric vehicles across all Indian states and union territories.
Indian Army Physical & Eligibility Calculator
Check your Indian Army Agniveer, CAPF, BSF, CRPF, ITBP, CISF and SSB physical eligibility instantly. One combined calculator for Age, Height, Weight, BMI, 1.6 km Running, Chest Expansion, Push-ups, Sit-ups and overall Army Fitness Score.
EV vs. Petrol Cost Calculator
Compare the total cost of ownership between Electric Vehicles (EVs) and petrol-powered cars. Calculate savings on fuel, energy, and maintenance to determine your long-term return on investment.
Net Worth Calculator
Calculate your personal net worth by adding up all your assets — savings, investments, property, gold, and vehicles — and subtracting your outstanding liabilities. See exactly where you stand financially and how you compare to age-based benchmarks.
RV Solar Panel & Battery Bank Calculator
Size your RV, camper van, or motorhome solar system instantly. Enter your daily appliance usage, peak sun hours, battery chemistry, and autonomy days to get the exact solar panel wattage, battery bank capacity (Ah), and charge controller size you need for reliable off-grid power.
Flat Buy Calculator
Calculate the real, total cost of buying a flat in India — not just the sticker price. Enter your flat's base price, city, and construction status to instantly see GST, stamp duty, registration charges, brokerage, legal fees, home loan costs, and hidden builder charges, all added up into one true out-of-pocket number.
Chicken Coop Size Calculator
Find the exact coop space, run space, roosting bar length, and number of nesting boxes your flock needs. Enter your flock size, breed size, and how much time your chickens spend outside to get a precise, overcrowding-free coop and run size in square feet.
Paint Calculator
Estimate exactly how much paint your walls, room, or entire house needs. Enter your area, number of coats, and paint type — and get litres required plus an approximate cost, so you buy the right quantity the first time.
Stamp Duty Calculator
Calculate stamp duty and registration charges for residential and commercial property purchases across Indian states. Compare state-wise rates, metro cess, and women buyer concessions instantly.
Browse Calculators
Explore all available calculators across different categories.
Age Calculator
Calculate your exact age instantly from your date of birth. Find your age in years, months, weeks, days, hours, minutes, and seconds using our free online Age Calculator.
BMI Calculator
Calculate your Body Mass Index (BMI) instantly using your height and weight. Determine whether you are underweight, normal weight, overweight, or obese across both International WHO and Asian-specific ICMR diagnostic standards.
Percentage Calculator
Calculate percentages, percentage increases, percentage decreases, and proportional fractions instantly. Multi-mode calculator for finding 'What is X% of Y', 'X is what % of Y', and percent change.
Date Calculator
Calculate the exact difference between two dates in years, months, weeks, days, hours, and minutes. Use our free Date Calculator for date duration, countdowns, and date interval calculations.
GST Calculator
Calculate Indian Goods and Services Tax (GST) instantly for both inclusive and exclusive amounts. Breakdown base price, CGST, SGST, IGST, and total invoice value across all standard GST slabs (5%, 12%, 18%, 28%).
EMI Calculator
Calculate monthly EMI, total interest payable, and total loan repayment amount instantly. Plan home loans, car loans, and personal loans with accurate amortization breakdowns.
Mileage Calculator
Calculate your car or bike's real mileage in km/L, fuel cost per kilometre, and total trip expense from distance travelled, fuel used, and fuel price.
SIP Calculator
A free SIP Calculator built to help you plan smarter mutual fund investments. Just enter your monthly investment amount, expected rate of return, and investment duration to instantly see your total invested amount, wealth gained, and projected maturity value — making it easier to plan systematic investments and work toward long-term financial goals like retirement, education, or wealth creation.
FD Calculator
Calculate Fixed Deposit (FD) maturity amount, cumulative interest earned, and quarterly compounding returns. Compare interest rates across leading Indian public, private, and small finance banks with DICGC insurance and tax deduction guidance.
Simple Interest Calculator
Calculate simple interest, interest earned, and total maturity amount instantly.
Discount Calculator
Calculate sale prices, net savings, and successive stacked discounts (e.g. 50% + 20% off) instantly. Determine true discount percentages from MRP to checkout price.
Fuel Cost Calculator
Calculate daily, monthly, yearly fuel expenses and cost per kilometre for petrol, diesel, and CNG vehicles.
GPA Calculator
Calculate Semester Grade Point Average (SGPA), Cumulative GPA (CGPA), and percentage conversions using the University Grants Commission (UGC) 10-point Choice Based Credit System (CBCS) and US 4.0 scale.
Unit Converter
Convert length, weight, temperature, area, volume, speed, time, and data storage units instantly.
HRA Calculator
Calculate House Rent Allowance (HRA) tax exemption under Section 10(13A) of the Income Tax Act. Determine exempt HRA, taxable HRA, and tax savings across metro (50%) and non-metro (40%) cities.
Income Tax Calculator
Calculate your income tax for FY 2025-26 (AY 2026-27) under both the Old and New tax regimes. Compare your tax liability side-by-side, factor in deductions and the Section 87A rebate, and find out which regime saves you more.
Attendance Calculator
Calculate your current class attendance percentage, determine the exact number of consecutive lectures needed to reach mandatory 75% or 80% criteria, and calculate how many classes can be safely skipped.
BMR Calculator
Calculate your Basal Metabolic Rate (BMR) using the Mifflin-St Jeor Equation. Estimate the number of calories your body burns at rest and determine your daily calorie requirements based on activity level.
Calorie Calculator
Calculate your Total Daily Energy Expenditure (TDEE) and daily calorie targets for sustainable fat loss, muscle gain, or weight maintenance based on the clinical Mifflin-St Jeor equation and physical activity coefficients.
Body Fat Calculator
Calculate your body fat percentage using the U.S. Navy Method. Estimate body fat levels for men and women and determine your body fat category instantly.
CGPA Calculator
Calculate your CGPA (Cumulative Grade Point Average) and convert it into percentage instantly. Add grades and credits for multiple subjects to get accurate results.
CAGR Calculator
Calculate the compound annual growth rate of a lump-sum investment from its beginning value, ending value, and holding period. Also see profit and absolute return.
Compound Interest Calculator
Calculate compound interest, maturity amount, investment growth, and total interest earned instantly using annual, monthly, quarterly, or daily compounding.
Average Calculator
Need to find the average of a list of numbers? This free calculator instantly works out the mean, total, count, minimum, and maximum values — and shows you the full step-by-step calculation so you understand exactly how the result was reached.
Scientific Calculator
Free online Scientific Calculator (Sci Calculator / SC Calculator) for advanced mathematical calculations including trigonometry, logarithms, powers, roots, factorials, exponents, and engineering calculations.
PPF Calculator
Calculate your Public Provident Fund (PPF) maturity amount, total investment, and estimated interest earnings. Plan long-term sovereign-backed savings, tax-free returns under EEE status, and retirement corpus growth.
Inflation Calculator
Calculate the future value of money after inflation and understand how rising prices affect your purchasing power over time. Use our free Inflation Calculator to estimate inflation-adjusted values and plan your finances more effectively.
Lumpsum Calculator
Calculate the future value of a one-time mutual fund lump-sum investment. Estimate compounding growth, total wealth gained, and long-term capital accumulation across equity, debt, and hybrid assets.
SWP Calculator
Calculate monthly systematic withdrawals, capital preservation, remaining mutual fund corpus, and tax-efficient cash flow streams from your lump-sum investments.
Retirement Calculator
Calculate the retirement corpus you may need to maintain your lifestyle after retirement. Estimate future expenses, inflation-adjusted costs, retirement savings, and monthly retirement income using our free Retirement Calculator.
Fraction Calculator
Calculate fractions instantly. Add, subtract, multiply, divide, simplify fractions, convert fractions to decimals, and solve mixed fraction problems online.
Mean Median Mode Calculator
Calculate mean, median, and mode instantly from a set of numbers. Use our free Mean Median Mode Calculator to analyze data, statistics, averages, and distributions quickly and accurately.
Ratio Calculator
Calculate, simplify, compare, and solve ratios instantly. Use our free Ratio Calculator to find equivalent ratios, ratio values, proportions, and ratio relationships quickly and accurately.
Standard Deviation Calculator
Calculate standard deviation, variance, mean, and data spread instantly. Use our free Standard Deviation Calculator for statistics, research, education, and data analysis.
Probability Calculator
Calculate probability, odds, event likelihood, and chance percentages instantly. Use our free Probability Calculator for statistics, mathematics, education, and exam preparation.
Quadratic Equation Calculator
Struggling with a quadratic equation? Our calculator instantly finds the roots, calculates the discriminant, tells you whether the roots are real or complex, and breaks down the parabola's key properties — perfect for students and quick problem-solving.
Permutation & Combination Calculator
Calculate permutations (nPr) and combinations (nCr) instantly. Use our free calculator for probability, statistics, mathematics, competitive exams, and data analysis.
Matrix Calculator
Perform matrix addition, subtraction, multiplication, determinant calculations, inversion, and transposition instantly using our free online Matrix Calculator.
Percentage Difference Calculator
Calculate percentage difference between two numbers instantly. Compare values, find percentage change, and analyze increases or decreases accurately using our free Percentage Difference Calculator.
Password Generator
Generate strong, secure, and random passwords instantly. Create passwords with uppercase letters, lowercase letters, numbers, and special characters for better online security.
Random Number Generator
Generate random numbers instantly between any minimum and maximum range. Perfect for games, giveaways, lotteries, statistics, and decision making.
QR Code Generator
A free, easy-to-use QR Code Generator for websites, text, emails, phone numbers, WiFi networks, and more. Create a custom QR code in seconds, preview it instantly, and download it in high resolution — perfect for business cards, posters, menus, or sharing information quickly without typing.
Prime Number Calculator
Check whether a number is prime or composite instantly. Find factors, divisors, and analyze prime numbers using our free Prime Number Calculator.
LCM Calculator
Need to find the LCM of a set of numbers fast? Our free LCM Calculator instantly calculates the Least Common Multiple of two or more numbers, with clear results perfect for homework, teaching, or quick math problem-solving.
Distance Calculator
Calculate the distance between two points instantly using the distance formula. Find distances in coordinate geometry accurately with our free Distance Calculator.
Slope Calculator
Calculate the slope of a line between two points instantly. Use our free Slope Calculator to determine slope, rise, run, and line characteristics in coordinate geometry.
Ideal Body Weight Calculator
Calculate your ideal body weight (IBW) by height and gender using the Devine, Hamwi, Robinson, and Miller formulas. Get an instant healthy weight range to guide fitness, nutrition, and weight management goals.
Water Intake Calculator
Calculate your recommended daily fluid intake based on body weight, physical exertion levels, and environmental climate factors following EFSA and National Academies hydration guidelines.
Macro Calculator
Calculate your daily macronutrient needs including protein, carbohydrates, and fats based on your calorie goals, activity level, and fitness objectives.
Sleep Cycle Calculator
Calculate the best time to sleep or wake up based on natural sleep cycles. Improve sleep quality, wake up refreshed, and optimize your sleep schedule with our Sleep Cycle Calculator.
Protein Intake Calculator
Calculate your daily protein requirements based on body weight, activity level, and fitness goals. Determine how much protein you need for muscle gain, weight loss, recovery, and overall health.
Heart Rate Zone Calculator
Calculate your heart rate training zones based on age and resting heart rate. Optimize workouts, improve endurance, burn fat, and maximize cardiovascular fitness with personalized heart rate zones.
Lean Body Mass Calculator
Calculate your Lean Body Mass (LBM) using your height, weight, and gender. Estimate the weight of your muscles, bones, organs, and body water excluding body fat.
Waist-to-Hip Ratio Calculator
A free Waist-to-Hip Ratio (WHR) Calculator to help you understand your body fat distribution and associated health risks. Simply enter your waist and hip measurements to instantly calculate your WHR, see how it compares to standard health ranges, and learn whether your body shape may indicate a higher risk of conditions like heart disease or diabetes. Fast, accurate, and easy to use.
Final Grade Calculator
Calculate the score you need on your final exam to achieve your desired course grade. Quickly determine required marks using your current grade, final exam weight, and target grade.
Due Date Calculator
Calculate your pregnancy due date, current pregnancy week, trimester, conception date, and important milestones instantly.
Ovulation Calculator
Calculate your exact ovulation date, track your fertile window, and determine the best days to conceive naturally using our free online Ovulation Calculator.
Body Surface Area Calculator
Calculate your Body Surface Area (BSA) using height and weight. Commonly used in medical and healthcare settings.
Pregnancy Weight Gain Calculator
Estimate healthy pregnancy weight gain based on your pre-pregnancy BMI, current pregnancy week, height, and weight. Track recommended weight gain throughout pregnancy and understand healthy pregnancy growth milestones.
Time Duration Calculator
Calculate the exact duration between two dates and times. Find the difference in years, months, days, hours, minutes, and seconds instantly.
Study Hours Calculator
A complete exam preparation planner for students. Calculate the total study hours you have available before your exam, automatically break that time down per subject and per chapter based on priority, and get a recommended daily study target — helping you build a realistic, balanced schedule instead of guessing how much time each topic deserves.
Marks Required Calculator
Calculate the marks required in remaining exams to achieve your target percentage, grade, or academic goal.
Exam Countdown Calculator
Get an exact countdown of the days, weeks, and study hours remaining until your exam. Use it to break your syllabus into manageable chunks, set daily and weekly study targets, track your preparation progress over time, and avoid last-minute cramming — so you walk into the exam fully prepared and on schedule.
Business Days Calculator
Calculate the number of business days, working days, weekends, and total days between two dates. Ideal for project planning, HR management, payroll calculations, and scheduling.
Sukanya Samriddhi Yojana Calculator
Calculate the maturity corpus, total investment, and compounding interest earnings for the Sukanya Samriddhi Yojana (SSY) small savings scheme for a girl child under Ministry of Finance statutory rules.
NPS Calculator
Calculate your National Pension System (NPS) maturity corpus at age 60, the 60% tax-free lump-sum withdrawal, 40% mandatory annuity allocation, and estimated lifelong monthly pension.
Gratuity Calculator
Calculate gratuity amount based on your last drawn salary and years of service. Estimate gratuity benefits instantly using the official gratuity formula.
Love Calculator
Enter two names to generate a repeatable love percentage and playful compatibility message. This private, name-based love test is free and intended for entertainment.
Friendship Calculator
Check friendship compatibility between two people using their names. Discover your friendship percentage, bond strength, and compatibility level instantly with our free Friendship Calculator — a fun way to celebrate any friendship.
Crush Calculator
Check your crush compatibility percentage instantly with our free Crush Calculator — just enter two names to discover your crush match score, relationship potential, and compatibility level. Fun, fast, and free to use anytime, anywhere, with no sign-up required!
Lucky Number Calculator
Calculate your lucky number using your date of birth. Discover your numerology number, personality traits, strengths, and life path insights instantly with our free Lucky Number Calculator.
House Construction Cost Calculator
Estimate house construction cost in India from built-up area, city tier, quality, and floors. Review per-square-foot rates plus material and labour shares.
Brick Calculator
Estimate bricks or blocks for a wall from its length, height, and thickness. Include mortar, wastage, unit price, and openings to plan quantity and cost.
Cement Calculator
Estimate 50 kg cement bags, cement weight, volume, and cost for slabs, foundations, beams, columns, and floors using project dimensions and concrete grade.
Concrete Calculator
Calculate concrete volume, cement bags, sand quantity, aggregate quantity, and material costs for slabs, foundations, columns, beams, and construction projects.
JSON Formatter
Fix, format, beautify, validate, and minify JSON data instantly with one click. Free online JSON Formatter and JSON Beautifier for developers.
UUID Generator
Generate UUID v4 identifiers instantly. Create single or multiple unique UUIDs for development, databases, APIs, testing, and distributed architecture.
Base64 Encoder Decoder
Encode text or binary data to Base64 strings and decode Base64 back to its original format instantly. Free, secure, client-side online developer utility.
URL Encoder Decoder
Encode and decode URLs instantly. Convert special characters into percent-encoded, URL-safe formats or parse encoded strings back into human-readable text.
JWT Decoder
Decode JWT tokens instantly, right in your browser — nothing is sent to a server. View the header, payload, expiration time, and issue time at a glance.
Hash Generator
Instantly generate MD5, SHA-1, SHA-256, SHA-384, and SHA-512 hashes online — completely free. Built for developers, cybersecurity professionals, students, and IT administrators who need quick, reliable hashing.
Unix Timestamp Converter
Instantly convert Unix timestamps into readable dates, or dates into Unix timestamps. Supports Epoch time, UTC, milliseconds, and other developer-friendly timestamp calculations.
Regex Tester
Test regular expressions instantly against text input. Validate patterns, find matches, and debug regex expressions online.
Diff Checker
Compare two versions of text, code, JSON, or configuration side by side or inline. Highlight added and removed lines locally, with options to ignore case or whitespace.
Gold Making Charges Calculator
Work out the real price of gold jewellery before you walk into a store. Enter the gold rate, weight, purity, making charge percentage (or flat rate), hallmarking fee, and GST — and see exactly how each rupee adds up to your final bill.
Gold Price Calculator
Find out what your gold is worth in seconds. Enter today's gold rate, weight, and purity — in grams, kilograms, tola, or ounces — and get an instant, accurate value for 24K, 22K, 18K, and 14K gold.
Silver Price Calculator
Find out what your silver is worth in seconds. Enter today's silver rate, weight, and purity — in grams, kilograms, tola, or ounces — and get an instant, accurate value for fine, sterling, and other common silver purities.
Gold GST Calculator
Work out exactly how much GST applies to your gold purchase. Select your purity, enter the gold rate, weight, and making charges — and see the 3% GST on gold value and 5% GST on making charges calculated separately, plus your final bill.
Wedding Budget Calculator
Estimate your total wedding cost in India by guest count, city tier, and style, with a category-wise breakdown covering venue, catering, décor, photography, attire, and more.
Party Budget Calculator
Estimate the total cost of a birthday, anniversary, or house party in India by guest count, venue type, and catering style, with a clear category-wise cost breakdown.
Event Cost Calculator
Estimate the total cost of a corporate or community event in India by attendee count, event type, and production level, including venue, catering, AV, and GST.
Travel Cost Calculator
Estimate the total cost of a road trip or multi-day vacation in India, covering fuel, tolls, accommodation, food, and daily expenses per traveler.
Tile Calculator
Find out exactly how many tiles, boxes, and how much grout and adhesive you need for any room. Enter your room dimensions, tile size, and a safety wastage margin — and get a clear breakdown of tiles required, boxes to buy, and estimated cost, so you don't run short mid-job or overspend on extras.
Zodiac Compatibility Calculator
Check your zodiac sign compatibility instantly with our free Zodiac Compatibility Calculator — just select two zodiac signs (or enter birth dates) to discover your love match percentage, element compatibility, and relationship potential. Fun, fast, and free to use anytime, anywhere, with no sign-up required!
Kundli Milan Calculator (Guna Milan Score)
Compare the bride's and groom's Rashi or Nakshatra to estimate an Ashtakoot Guna Milan score out of 36. Includes the eight-koota breakdown and clear limitations.
Rebar Cutting Length Calculator
Calculate the exact cutting length of reinforcement bars before fabrication. Enter the bar shape, span or member dimension, diameter, bend angles, hook type, and concrete cover — and get the cutting length, bend deductions, and steel weight, based on IS 2502 practice used across Indian construction sites.
Fertilizer Requirement Calculator
Calculate exactly how much urea, DAP, and MOP (or your preferred fertilizer sources) your field needs. Enter your crop, field area, and recommended NPK dose — get the precise fertilizer quantity required, broken down by nutrient, so you apply the right amount instead of guessing.
Road Tax Calculator
Calculate road tax, RTO registration charges, and on-road price addition for your car or bike instantly. Get accurate state-wise motor vehicle tax slabs for petrol, diesel, CNG, and electric vehicles across all Indian states and union territories.
Indian Army Physical & Eligibility Calculator
Check your Indian Army Agniveer, CAPF, BSF, CRPF, ITBP, CISF and SSB physical eligibility instantly. One combined calculator for Age, Height, Weight, BMI, 1.6 km Running, Chest Expansion, Push-ups, Sit-ups and overall Army Fitness Score.
EV vs. Petrol Cost Calculator
Compare the total cost of ownership between Electric Vehicles (EVs) and petrol-powered cars. Calculate savings on fuel, energy, and maintenance to determine your long-term return on investment.
Net Worth Calculator
Calculate your personal net worth by adding up all your assets — savings, investments, property, gold, and vehicles — and subtracting your outstanding liabilities. See exactly where you stand financially and how you compare to age-based benchmarks.
RV Solar Panel & Battery Bank Calculator
Size your RV, camper van, or motorhome solar system instantly. Enter your daily appliance usage, peak sun hours, battery chemistry, and autonomy days to get the exact solar panel wattage, battery bank capacity (Ah), and charge controller size you need for reliable off-grid power.
Flat Buy Calculator
Calculate the real, total cost of buying a flat in India — not just the sticker price. Enter your flat's base price, city, and construction status to instantly see GST, stamp duty, registration charges, brokerage, legal fees, home loan costs, and hidden builder charges, all added up into one true out-of-pocket number.
Chicken Coop Size Calculator
Find the exact coop space, run space, roosting bar length, and number of nesting boxes your flock needs. Enter your flock size, breed size, and how much time your chickens spend outside to get a precise, overcrowding-free coop and run size in square feet.
Paint Calculator
Estimate exactly how much paint your walls, room, or entire house needs. Enter your area, number of coats, and paint type — and get litres required plus an approximate cost, so you buy the right quantity the first time.
Stamp Duty Calculator
Calculate stamp duty and registration charges for residential and commercial property purchases across Indian states. Compare state-wise rates, metro cess, and women buyer concessions instantly.