Retirement
Retirement Calculator
Estimate a retirement corpus, the monthly investment that might close any gap, and whether current savings look like a shortfall or a surplus. Every result is labelled as an estimate.
How the calculator works
The model inflates today’s monthly expenses until retirement, then sizes a corpus that could support those growing withdrawals until the planning age, while the remaining money earns the post-retirement return you entered. Current savings are grown at the pre-retirement return. Any gap is converted into a monthly SIP until retirement.
Retirement estimate approach
E = expenses × 12 × (1 + i)^t · Corpus = PV of growing annuity · SIP = amount needed to close any gap
Expenses are inflated until retirement. The corpus is the present value of those growing withdrawals over the retirement years. Existing savings are grown at the pre-retirement return. Any remaining gap is converted into a monthly SIP.
Example
A 30-year-old spending ₹50,000 a month, retiring at 60, with 6% inflation, 10% returns before retirement and 7% after, plus ₹5,00,000 already saved, will see a large estimated corpus and a monthly SIP figure. Change one assumption at a time — especially inflation and post-retirement return — to see how wide the range is.
Important considerations
Sequence of returns, health costs, family support and taxes can dwarf a tidy spreadsheet. Drawdown is modelled as a growing annuity, not as a bucket of specific products. Do not treat the SIP number as a mandate; treat it as a starting estimate to discuss with a registered adviser if you need personal advice.
Frequently asked questions
Are these results a financial plan?
No. They are estimates from the assumptions you type in. A plan would also consider taxes, pensions, insurance, healthcare and your risk capacity.
Why is there a life expectancy field?
The corpus is the present value of inflated expenses from retirement until that age. A longer horizon needs a larger corpus. The default of 85 is a planning choice, not a prediction of lifespan.
What if the calculator shows a surplus?
It means the future value of current savings already covers the estimated corpus under those assumptions. Markets, inflation and spending can still miss the model. A surplus is not a guarantee.
Does this include EPF, NPS or a pension?
Only through the current savings input. If you expect a pension or annuity, you can lower expenses or raise current savings to approximate it. Dedicated NPS tooling is planned later.
Related calculators
- SIP CalculatorEstimate the future value of monthly systematic investments, with an optional annual step-up.
- Inflation CalculatorSee how inflation changes future costs and the purchasing power of money.
- NPS CalculatorProject an NPS corpus, lump sum and a simple annuity pension from monthly contributions.
- FIRE CalculatorEstimate a financial-independence number and years to reach it at an assumed return.
Browse the full directory on the calculators page.
Related guides
SmartCalculators provides educational calculators and estimates. Results are for informational purposes only and should not be considered financial, tax, investment, legal or professional advice.