Working out how much should I save for retirement can be broken down into three sequential questions: What will your monthly expenses be once you stop working? What capital will be needed to cover those expenses throughout your life? And what monthly amount must you save to build that capital, given your current situation? The calculator below answers these three questions. To use it, enter your current expenses, your age, your planned retirement date, and your assumptions regarding inflation and investment returns.
How the Calculator Works
The figure most people need to estimate is the corpus—that is, the sum that must be accumulated by the time of retirement. This estimation is complex because two factors work in opposite directions: inflation increases monthly living expenses, while unspent capital continues to generate returns. The calculator takes these two aspects into account across three stages.
| Step | Result |
|---|---|
| Inflate today’s expenses to retirement | ₹50,000 becomes ₹2,87,175 a month |
| Fund 25 years of that at the real return | Corpus needed: ₹4,99,77,238 |
| Work backwards to a monthly investment | ₹17,658 a month for 30 years |
Step 1: What a Month Will Cost You
Today’s ₹50,000 will not be ₹50,000 in thirty years. At 6% inflation the same lifestyle costs ₹2,87,175 a month by the time you turn 60. This is the number people underestimate most, and it is why retirement targets set in today’s money fall short.
Step 2: The Corpus That Funds It
The period between the ages of 60 and 85 entails 25 years of capital withdrawals. It is not necessary to keep the entire sum in cash, as the invested balance continues to generate returns. The determining factor is the difference between the return and inflation—specifically, 11% versus 6% in this case—which equates to a real return of approximately 4.7%. To fund monthly payments of ₹2,87,175 over 25 years with this real return, a capital sum of ₹4,99,77,238 is required.
Step 3: The Monthly Investment
A reverse calculation shows that, with an 11% return, a monthly investment of ₹17,658 is required to reach a capital of ₹4,99,77,238 after 30 years. This is precisely where the value of the calculator lies: the goal of nearly five crore is abstract, whereas a figure of ₹17,658 per month provides a concrete basis for decision-making.
What You Need to Enter
- Current monthly expenses: what you currently spend, not what you earn.
- Current age: the point when the savings phase begins.
- Retirement age: the point when earned income ceases and the retirement phase begins.
- Life expectancy: the period during which your capital must cover your needs.
- Expected inflation: the rate at which your expenses increase.
- Expected return (before and after retirement): the return on your investments, both during the savings phase and the retirement phase.
The Assumptions Matter More Than the Answer
Each value provided by this calculator is based on two assumptions regarding the next fifty years. Even a slight change to one of these assumptions has a significant impact on the result; it is crucial to understand this relationship before treating any of these figures as a concrete action plan. India’s pension regulator, the PFRDA, runs a financial literacy programme covering retirement planning and the National Pension System.
- Inflation: the default value is 6%. A variation of just one percentage point over thirty years substantially alters the cost of living during retirement.
- Expected return: the default value is 11%; this figure assumes an equity-focused investment strategy with a long-term horizon. A more conservative portfolio will yield a lower return, requiring higher monthly contributions.
- Life expectancy: the default value is based on a 25-year retirement period. Living longer than anticipated poses the risk that is most difficult to offset after the fact.
- Single rate of return: the calculator uses the same rate for both the accumulation and withdrawal phases. In practice, most people shift their assets toward safer investments as retirement approaches, which lowers the return once that stage begins.
This does not diminish the calculator’s usefulness. On the contrary, it makes it a tool for comparing different scenarios, rather than simply providing a single figure. Run the calculation two or three times while adjusting the assumptions: the difference between the results is far more revealing than any isolated value.
Frequently Asked Questions
How much should I save for retirement?
There is no single figure, as it depends on your expenses, the age at which you retire, and your life expectancy. Based on the calculator’s default parameters—monthly expenses of ₹50,000, retirement at age 60, and a life expectancy of 85—the total capital required amounts to approximately ₹5 crore. This goal can be achieved by investing ₹17,658 per month starting at age 30.
What is a retirement corpus?
This refers to the total amount you need to have accumulated by the time you retire. This capital is intended to cover your living expenses for the rest of your life, supplemented by the returns generated on the remaining balance.
Why does the monthly expense amount increase so much?
Inflation operates through the effect of compound interest, just like investment returns. With an annual inflation rate of 6%, costs roughly double every twelve years; thus, a sum of ₹50,000 becomes ₹2,87,175 over thirty years, without any change in your lifestyle.
What rate of return should I consider?
The calculator uses a default rate of 11%. This figure reflects the long-term performance of equity investments and is not a guarantee. Choose a lower value if you adopt a more conservative investment strategy; in that case, the required monthly savings amount will increase accordingly.
Does starting to save later make a big difference?
A considerable difference. The monthly savings amount is spread across the remaining years, and the effect of compound interest is more powerful the longer the investment period. If you change the current age in the calculator, the required monthly investment amount increases significantly.
Is it realistic to apply a single rate of return for both phases?
Not entirely. Most people shift their assets toward safer investments shortly before retiring, which reduces returns during the withdrawal phase. Therefore, consider the result a planning estimate rather than an exact forecast.
Related Calculators
- SIP Calculator — see what a given monthly investment grows into.
- Step Up SIP Calculator — for contributions that rise with your income each year.
- Lumpsum Investment Calculator — for money invested in one go rather than monthly.
- Compound Interest Calculator — the mechanism underneath all of these.
- FD Calculator — the fixed-return comparison.