Health Calculators
Browse all calculators available in the Health category.
16 calculators found
BMI Calculator
Calculate your Body Mass Index (BMI) instantly using your height and weight. Determine whether you are underweight, normal weight, overweight, or obese with our free BMI Calculator.
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 daily calorie needs for weight maintenance, weight loss, or weight gain based on your age, gender, height, weight, and activity level.
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.
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
Not sure if you're drinking enough water? Our free Water Intake Calculator factors in your weight and activity level to instantly tell you your ideal daily hydration target — so you can stay healthy and energized.
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.
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.