Pension Calculator
This free pension calculator estimates the retirement corpus you can build and the monthly pension it could provide, based on your regular contributions, expected rate of return, and the number of years until you retire. Planning your pension early is one of the most important financial steps you can take. Enter your details and the calculator projects your retirement savings and income.
How to Use the Pension Calculator
- Enter your monthly contribution.
- Enter your current age and retirement age.
- Enter the expected annual return.
- Calculate — see your projected corpus and monthly pension.
How Your Pension Builds
Your contributions are invested and grow through compounding until retirement. The accumulated corpus can then provide a monthly pension, either through an annuity or systematic withdrawals. The longer you contribute and the higher the return, the larger your final corpus — and the bigger your monthly income in retirement.
The Power of Starting Early
| Start Age | Years to 60 | Relative Corpus (same monthly amount) |
|---|---|---|
| 25 | 35 | Largest |
| 35 | 25 | Much smaller |
| 45 | 15 | Smallest |
Because compounding rewards time, starting ten years earlier can more than double your final corpus for the same monthly contribution.
What Affects Your Pension
- Contribution amount: higher contributions build a bigger corpus.
- Time: the earlier you start, the more compounding works for you.
- Rate of return: higher returns grow the corpus faster.
- Withdrawal method: annuity vs systematic withdrawal affects monthly income.
Note: Returns are not guaranteed. This is an estimate for retirement planning.
Frequently Asked Questions
How is a pension calculated?
Your regular contributions grow with compound interest until retirement to form a corpus, which then provides a monthly pension through an annuity or withdrawals. The calculator projects both.
How much should I save for retirement?
It depends on your desired retirement income and years to retire. Starting early with regular contributions and a reasonable return is the key to building an adequate corpus.
Why does starting early matter so much?
Because of compounding, contributions made earlier have more time to grow, so starting ten years sooner can dramatically increase your final corpus.
What return should I assume?
Use a realistic long-term rate based on your investment mix — more conservative for safety, higher for equity-heavy portfolios. Past performance does not guarantee future returns.
Is this pension calculator free?
Yes — it is completely free, requires no signup, and estimates your retirement corpus and pension.