Retirement Calculator
Estimate retirement corpus based on monthly savings.
Input & results
Input values
Results
Enter values to see instant results.
Calculation History
- Your calculations will appear here.
Recent calculations are saved automatically as you adjust inputs.
Financial results are estimates for informational purposes only and are not financial, tax, or investment advice. Verify figures with a qualified professional before making decisions. See our full disclaimer.
What is Retirement?
A Retirement Calculator estimates the corpus you need to retire comfortably and projects how your current savings and contributions will grow by your retirement age. It connects today's saving habits to your future financial security.
Retirement planning balances how much you save now against how much you will need later, accounting for growth through compounding and the eroding effect of inflation. This calculator projects the future value of your existing savings and ongoing contributions, helping you see whether you are on track and how changes to your savings rate or timeline affect the outcome.
Why is it used?
The earlier you understand your retirement gap, the easier it is to close. Modeling your corpus helps you set a realistic monthly savings target, account for inflation, and avoid the shortfall many people discover too late.
Who should use it?
Working professionals at any career stage who want to plan their retirement savings, and anyone reviewing whether their current contributions will be enough.
How it works
- Enter Monthly Savings, Expected Return (%), Years to Retirement, Current Savings in the input fields.
- The calculator validates your entries and applies the correct retirement formula.
- Results update in real time as you change any value — no submit button needed.
- Review the formula, variable definitions, and worked example below to see how the answer is derived.
Formula
Variable definitions
| Variable | Meaning |
|---|---|
| FV | Future value of savings at retirement |
| P | Present savings amount |
| r | Expected annual growth rate as a decimal |
| n | Years until retirement |
How the formula works
- Determine years to retirement: n = retirement age − current age.
- Project current savings forward with FV = P × (1 + r)^n.
- Add the future value of ongoing contributions over the same period.
- Compare the projected corpus to your estimated retirement need.
Example calculation
₹10,00,000 saved today growing at 9% for 25 years to retirement.
| Input | Value |
|---|---|
| Current savings | ₹10,00,000 |
| Growth rate | 9% |
| Years to retirement | 25 |
- r = 0.09, n = 25
- FV = 1000000 × (1.09)^25
- (1.09)^25 ≈ 8.623
- FV ≈ ₹86,23,081
Result
More examples
Same savings with only 15 years to retirement.
| Input | Value |
|---|---|
| Current savings | ₹10,00,000 |
| Growth rate | 9% |
| Years | 15 |
- (1.09)^15 ≈ 3.642
- FV ≈ ₹36,42,482
Result
Methodology
- Gather Monthly Savings, Expected Return (%), Years to Retirement, Current Savings from your documents or estimates.
- Enter each value in the matching field; units must match the labels.
- The calculator applies the Retirement formula and updates results in real time.
- Compare scenarios by changing one input at a time.
Benefits
- See whether your savings are on track for retirement.
- Set a realistic monthly savings target.
- Understand the impact of starting early.
- Factor growth and time into long-term planning.
Use cases
- Early-career professionals setting a savings habit.
- Mid-career reviews to check progress.
- Estimating the corpus needed for a target income.
- Comparing scenarios with different savings rates.
Tips & important notes
- Account for inflation — a future corpus buys less than it does today.
- Increase contributions as your income grows.
- Use conservative growth assumptions for safety.
- Revisit the plan every few years and after major life changes.
Common mistakes
- Ignoring inflation when judging if the corpus is enough.
- Assuming unrealistically high growth rates.
- Delaying savings, which sacrifices years of compounding.
Related concepts
- Compounding and time value of money
- Inflation and real vs nominal returns
- The 4% safe-withdrawal rule
Good to know