Smart Retirement Calculator
Plan your retirement corpus, estimate future expenses, and track your financial readiness with a modern retirement planning dashboard.
How retirement corpus is calculated
Project future expenses
Inflate today's monthly expenses to the year of retirement. ₹50K/month at 6% inflation over 30 years becomes ~₹2.87L/month.
Compute the corpus needed
Using real return (post-retirement return minus inflation), find the lump sum that funds inflation-growing withdrawals till life expectancy.
Project your corpus
Future-value your current savings + monthly SIP at the pre-retirement return to estimate what you'll actually have at retirement.
Get the gap and required SIP
If projected < needed, the tool shows the shortfall and the additional monthly SIP that would close it exactly.
Retirement planning tips
Start in your 20s if possible
₹5K/month from age 25 beats ₹15K/month from age 35 over a 35-year horizon. Compounding rewards time more than amount.
Equity for accumulation
60-80% equity allocation during accumulation. Index funds and large-cap mutual funds for the boring, market-beating compounding.
Glide path post-50
Gradually shift to debt/balanced funds as retirement nears. 10 years before, target 50/50. At retirement, 30-40% equity is enough for growth.
Don't forget healthcare
Medical inflation runs higher than general inflation (8-10%). Add a separate health corpus + good health insurance — don't dip into retirement money.
Consider FIRE
Save 50-70% of income for 10-15 years and you can retire by 40-45. Requires lifestyle discipline but compounds dramatically.
Review yearly
Income hikes, expense shifts, market years can all bend the trajectory. Re-run this calculator every year on your birthday.
What is retirement planning?
Retirement planning is the process of estimating how much money you'll need to maintain your lifestyle after you stop working, and structuring savings and investments to accumulate that amount. The math has three moving parts — your expected expenses, the impact of inflation eroding purchasing power, and the returns your investments earn before and after retirement.
The corpus rule
25× annual expenses is the rough target. This roughly sustains a 4% safe withdrawal rate for 30+ years.
Inflation matters most
6% inflation over 30 years means ₹1 today is worth ₹0.17 then. Plan in future-value rupees, not today's.
Two return rates
Pre-retirement returns (equity-heavy, 10-13%) and post-retirement returns (debt-heavy, 7-9%) are very different. Use both.
Time > amount
Starting 10 years earlier with half the SIP usually ends up with a bigger corpus than starting late with double the SIP.
Inflation and retirement explained
The cruelty of inflation is that it compounds silently while you accumulate. If you plan based on today's expenses without inflating them forward, you'll wildly under-save. Here's what ₹50K/month today looks like after various periods at 6% inflation:
| Years from now | Equivalent expense | Annual expense |
|---|---|---|
| 10 years | ₹89,500/month | ₹10.74 L/year |
| 20 years | ₹1,60,000/month | ₹19.23 L/year |
| 30 years | ₹2,87,000/month | ₹34.44 L/year |
| 40 years | ₹5,14,000/month | ₹61.66 L/year |
Best retirement investment strategies
- SIP in index funds: Low cost, market-beating over 15+ years, no fund manager selection risk. Default for most retirement portfolios.
- EPF + PPF: Tax-free, guaranteed returns (7-8%). EPF auto-deducted; PPF voluntary up to ₹1.5L/year.
- NPS: Tax benefits under 80CCD(1B) on top of 80C. Mandatory annuitisation of 40% at maturity is the catch.
- ELSS: Equity exposure with 80C deduction. 3-year lock-in is the shortest among tax-savers.
- Step-up SIP: Increase your SIP 5-10% every year as income grows. Doubles the corpus impact over long horizons.
FIRE movement explained
FIRE (Financial Independence, Retire Early) targets retirement by 35-45 by saving 50-70% of income for 10-15 years. The math relies on the 25× rule: once your corpus is 25 times your annual expenses, you can safely withdraw 4% per year indefinitely. Variations include LeanFIRE (modest lifestyle, smaller corpus), FatFIRE (premium lifestyle, higher target), and Coast FIRE (build the corpus by 40, let it compound, work optional after).
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Frequently asked questions
Common questions about retirement planning, corpus math, inflation, and how to interpret the readiness score.
