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Retirement Calculator
Find the corpus your expenses need in retirement, compare it with what your existing savings and monthly savings could grow to, and see any shortfall.
Compare the corpus your savings could build by retirement with the corpus your expenses need.
Free to run · to save projections to your live dashboard
Enter values and click Calculate to see results
Worked example
Calculated by the same engine as the calculator above.
- Inputs
- Current Age
- 30
- Retirement Age
- 60
- Plan Until Age
- 85
- Monthly Expenses Today
- ₹50,000
- Retirement Savings Today
- ₹5,00,000
- Monthly Savings
- ₹15,000
- Return Before Retirement (% p.a.)
- 10
- Return After Retirement (% p.a.)
- 7
- Inflation (% p.a.)
- 6
- Result
- Required Corpus
- ₹7,71,48,478
- Projected Corpus
- ₹4,41,08,580
- Shortfall
- ₹3,30,39,899
- Extra Monthly Saving Needed
- ₹14,495
- Projected Corpus in Today's Money
- ₹76,79,751
- Existing Savings at Retirement
- ₹99,18,700
- New Savings Invested
- ₹54,00,000
- Years to Retirement
- 30
Formula
Required = E × 12 × (1 + f)^y × [(1 - (1 + q)^-m) / q] × (1 + q); Projected = A × (1 + i)^n + S × [((1 + i)^n - 1) / i] × (1 + i)
- E = monthly expenses today; f = inflation / 100; y = years to retirement
- q = (1 + return after retirement) / (1 + f) - 1 (real return); m = plan-until age - retirement age
- A = retirement savings today; S = monthly savings
- i = return before retirement / 12 / 100; n = y × 12 months
Assumptions
- Returns and inflation stay constant. Savings are invested at the start of each month and existing savings compound monthly at the same return.
- In retirement, expenses rise with inflation and are withdrawn at the start of each year until the plan-until age; the corpus earns the after-retirement return and is used up by then.
- Extra monthly saving needed is the additional SIP, at the same return, that would close the shortfall by retirement.
- Taxes, fund costs, pensions and one-off goals are not included. Results are rounded to two decimal places.
- Educational estimate only, not financial advice. Capitallytics does not execute transactions.
Retirement Calculator FAQ
Answers about how this calculator works.
How is the required corpus worked out?
Your monthly expenses are grown by inflation to your retirement age, then the calculator finds the lump sum that pays that yearly amount, rising with inflation, until your plan-until age at the after-retirement return.
What return should I enter?
Use a long-run return that fits your asset mix. The defaults are 10% before and 7% after retirement for rupee savings, as portfolios usually get safer after you stop working.
Can I include savings I already have?
Yes. Enter what you have already set aside for retirement, such as EPF, PPF, NPS and mutual funds. It grows at the before-retirement return.
What does corpus in today's money mean?
It is the projected corpus divided by (1 + inflation) for each year to retirement, so you can compare it with what money buys today.