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.
Planning for retirement requires projecting inflation-adjusted monthly living expenses and computing a terminal corpus capable of sustaining withdrawals across a 25-to-35 year post-retirement horizon without principal exhaustion.
Retirement Calculator
Estimate your retirement corpus, future expenses, and savings requirements based on inflation and retirement goals.
FIRE 25x–33x Rule & Trinity Study Benchmarks
30x Annual Expenses Target (for 6% Inflation)While the US Trinity Study suggests a 25x annual expense corpus (4% withdrawal rate), Indian retirement planners recommend a 30x to 33x multiple (3%–3.33% safe withdrawal rate) to compensate for India's higher 6% average retail inflation and longer life expectancy.
Construction Calculators
Other Calculators
How the Retirement Calculator Works
Follow these simple steps to get accurate results instantly.
Enter Current Age
Provide your current age.
Enter Retirement Age
Choose the age at which you plan to retire.
Enter Monthly Expenses
Provide your current monthly living expenses.
Estimate Retirement Corpus
View inflation-adjusted expenses and the retirement corpus required.
Retirement Calculator Formula
Future Expenses = Current Expenses × (1 + Inflation Rate)^Years
The Retirement Calculator estimates future living expenses by adjusting current expenses for inflation. It then estimates the retirement corpus required to sustain those expenses after retirement.
Example Calculation
Input: Age: 30 | Retirement Age: 60 | Monthly Expenses: ₹50,000 | Inflation: 6%
Output: Estimated retirement corpus required based on future expenses
Common Uses
- • Retirement Planning
- • Financial Independence Planning
- • Early Retirement Planning
- • Wealth Creation Goals
- • Monthly Income Planning
- • Pension Planning
- • Long-Term Financial Planning
- • Family Financial Security
Frequently Asked Questions
Verified answers to essential calculation and diagnostic questions.
A Retirement Calculator estimates the amount of money you may need after retirement based on expenses, inflation, retirement age, and expected lifespan.
Inflation increases living costs over time. Retirement planning should account for future expenses rather than current expenses.
Retirement corpus is the total amount of savings and investments required to support your lifestyle after retirement.
Yes. The calculator helps estimate retirement needs regardless of retirement age.
The required corpus depends on lifestyle, inflation, retirement age, expected returns, and post-retirement income needs.
Yes. It can assist in estimating the savings needed for Financial Independence and Early Retirement (FIRE).
It helps estimate future expenses, retirement goals, savings targets, and financial independence requirements.
Why Retirement Planning is Important
Retirement planning helps ensure financial independence after you stop working. By starting early and investing consistently, you can build a retirement corpus that supports your lifestyle and protects against inflation.
Factors Affecting Retirement Corpus
| Factor | Impact |
|---|---|
| Current Age | Earlier start allows more compounding. |
| Retirement Age | Determines investment duration. |
| Monthly Expenses | Higher expenses require a larger corpus. |
| Inflation | Reduces future purchasing power. |
| Expected Returns | Affects corpus growth over time. |
When Should You Start Retirement Planning?
| Starting Age | Advantage |
|---|---|
| 20s | Maximum benefit from compounding. |
| 30s | Good balance of income and growth. |
| 40s | Requires higher monthly investments. |
| 50s | Focus on preservation and income. |
Common Retirement Income Sources
- Employee Provident Fund (EPF)
- Public Provident Fund (PPF)
- National Pension System (NPS)
- Mutual Fund SIPs
- Fixed Deposits
- Rental Income
Impact of Inflation
Inflation can significantly reduce the value of money over time. An expense of ₹50,000 per month today may require more than ₹1 lakh per month after 20 years depending on inflation rates.
Retirement Corpus Example
| Monthly Expense | Suggested Retirement Corpus |
|---|---|
| ₹25,000 | ₹75 Lakh - ₹1 Crore |
| ₹50,000 | ₹1.5 Crore - ₹2 Crore |
| ₹1,00,000 | ₹3 Crore - ₹4 Crore |
Retirement Planning Mistakes to Avoid
- Starting investments too late.
- Ignoring inflation.
- Depending on a single income source.
- Withdrawing retirement investments early.
- Not reviewing the plan periodically.
Investment Allocation by Age
| Age Group | Suggested Equity Allocation |
|---|---|
| 20-30 Years | 70% - 90% |
| 30-40 Years | 60% - 80% |
| 40-50 Years | 50% - 70% |
| 50+ Years | 30% - 50% |
The Power of Compounding
A person investing ₹10,000 per month from age 25 can accumulate significantly more wealth than someone investing ₹20,000 per month starting at age 40. Time is one of the most important factors in retirement planning.
Pro Tip
A common rule is to save at least 15% of your annual income toward retirement. Increasing investments whenever your salary increases can dramatically improve your retirement corpus.
Written & maintained by Aditya Singh
Aditya Singh is a software engineer and the founder of DevCalc, based in Uttar Pradesh, India. He builds and maintains every calculator on this site, using standard, verified formulas — the same ones used by banks, institutions, and educators — with careful attention to accuracy. Read more about the author →
This calculator and its guidance are for general educational purposes only and do not constitute financial, investment, or tax advice. Verify figures with a qualified professional before making financial decisions.