Retirement Calculator
Calculate how much you need to retire comfortably. Account for inflation, life expectancy, and current savings.
🏦Retirement Details
Current Savings FV
₹54.17 L
Gap to Fill
₹6.16 Cr
Retirement Savings Journey
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How the Retirement Calculator Works
The Three Questions Retirement Planning Answers
Retirement planning comes down to three questions: (1) How much will my current lifestyle cost when I retire? (2) How much corpus do I need to fund that lifestyle for 20–30 years of retirement? (3) How much do I need to save each month to reach that corpus?
The first question is answered by inflation. If you spend ₹50,000/month today and retire in 25 years, and inflation averages 6%, your monthly expenses will be ₹2.1 lakh at retirement. This is the single most common retirement planning mistake — planning based on today's expenses rather than inflation-adjusted future expenses.
The second question uses the 'present value of an annuity' formula. You need enough corpus so that even after withdrawing inflation-adjusted annual expenses for 20–30 years, the remaining balance still grows. The math is complicated because retirement returns are lower than working-years returns (you shift to conservative allocation post-retirement).
The third question is straightforward: given your current savings, expected returns, and time horizon, what monthly SIP gets you to the target corpus?
Why Pre and Post-Retirement Returns Differ
During your working years, you should invest aggressively in equity — 10–12% average returns. You have decades to recover from market downturns, and equity has historically been the only asset that beats inflation by a meaningful margin.
After retirement, the priority shifts from growth to safety. A 60/40 or 50/50 equity-debt portfolio produces 7–8% returns with far lower volatility. This matters because a market crash in the first years of retirement is devastating — it forces you to sell assets at depressed prices to fund living expenses.
This calculator handles both phases. The 'Pre-Retire Return' input is what your portfolio earns while you're accumulating. The 'Post-Retire Return' is what it earns while you're withdrawing. Using different rates for each phase produces a much more realistic retirement number.
The Real Reason to Start Early
Starting retirement savings at 25 vs 35 vs 45 isn't a small difference — it's the difference between a comfortable and a difficult retirement. For the same ₹1 crore target at age 60, a 12% return portfolio requires different monthly savings depending on start age.
Starting at 25 (35 years): ₹145/month. Starting at 35 (25 years): ₹500/month. Starting at 45 (15 years): ₹1,700/month. Starting at 55 (5 years): ₹12,000/month.
Every decade of delay roughly quadruples the required monthly savings. This is because compounding rewards time far more than it rewards amount. The best time to start was 10 years ago. The second-best time is today.
Step-by-Step Worked Example
Consider a realistic scenario: You're 30, spend ₹50,000/month, have ₹5 lakh saved, and want to retire at 55 with a life expectancy of 85. Assume 10% pre-retirement returns, 6% inflation, and 7% post-retirement returns.
- 1Years to retirement: 55 − 30 = 25 years.
- 2Retirement years: 85 − 55 = 30 years.
- 3Annual expense today: ₹50,000 × 12 = ₹6,00,000.
- 4Expense at retirement (6% inflation, 25 years): ₹6,00,000 × (1.06)^25 = ₹25,75,000/year.
- 5Real post-retirement return: (1.07 ÷ 1.06) − 1 = 0.94%.
- 6Corpus needed: ₹25,75,000 × [(1 − (1.0094)^-30) ÷ 0.0094] = ₹6,69,00,000 (approximately ₹6.7 crore).
- 7Future value of current savings: ₹5,00,000 × (1.10)^25 = ₹54,17,000.
- 8Gap: ₹6,69,00,000 − ₹54,17,000 = ₹6,14,83,000.
- 9Monthly SIP at 10% for 300 months: approximately ₹46,000/month.
Result
Retirement corpus needed: ₹6.7 crore (in future rupees)
Monthly expense at retirement: ₹2.15 lakh
Current savings will grow to: ₹54.17 lakh
Monthly SIP needed: ₹46,000
If you start at age 40 instead of 30: monthly SIP needed jumps to ₹1.4 lakh — a 3x increase!
Key Benefits & Use Cases
When to Use This Tool
- ✓Determining the exact corpus required to retire comfortably at any age.
- ✓Understanding how inflation erodes purchasing power over 20–30 years.
- ✓Evaluating whether current savings and monthly investments are on track.
- ✓Comparing retirement scenarios: retire at 50 vs 55 vs 60 and the trade-offs.
- ✓Planning for the accumulation phase and understanding the withdrawal phase dynamics.
Why It Matters
- →Inflation-adjusted corpus target, not a naive 'multiply by 25' number.
- →Separate pre and post-retirement returns for realistic projections.
- →Visual chart shows both the accumulation phase and withdrawal phase.
- →Accounts for life expectancy — a longer retirement needs a bigger corpus.
- →Reveals the enormous cost of delaying: starting 10 years later can quadruple monthly savings needed.
Who Should Use This Calculator
- ★Anyone aged 25–55 who hasn't formally calculated their retirement number.
- ★Salaried professionals planning for traditional retirement at 55–60.
- ★People considering early retirement who want to understand the corpus required.
- ★Families with dual incomes who need to consolidate their retirement planning.
Corpus Target
Know the exact amount you need to retire without running out of money.
Gap Analysis
See how much your current savings will grow and how much more you need.
Monthly Target
Get the exact monthly savings needed to reach your retirement goal.
How to Use
Enter Ages
Set current age, retirement age, and life expectancy.
Set Expenses
Enter your current monthly expenses and existing savings.
Set Rates
Enter expected return, inflation, and post-retirement return.
View Plan
See corpus needed, monthly savings target, and full timeline.
The Formula
Corpus = Annual Expense × [(1 - (1+r)^-n) / r]Frequently Asked Questions
How much do I need to retire?
It depends on your expenses and lifestyle. The basic rule: 25x your annual expenses (the 4% rule). If you spend ₹50,000/month (₹6L/year), you need ₹1.5 Crore — but inflation-adjusted for the actual retirement year. With 6% inflation over 25 years, your ₹50,000/month lifestyle becomes ₹2.15 lakh/month at retirement, requiring a ₹6.7 Crore corpus.
What is the 4% rule?
The 4% rule states you can withdraw 4% of your retirement corpus annually without running out of money for 30+ years. So Corpus = Annual Expenses × 25. In India, with higher inflation, many planners use 3.5% (multiply by ~28.5) for extra safety. The rule originates from the Trinity Study using US market data from 1926–1995.
How does inflation affect retirement?
Inflation is the silent killer of retirement planning. At 6% inflation, ₹50,000/month today becomes ₹1.6 lakh/month in 20 years, or ₹2.15 lakh/month in 25 years. Every year of delay makes the required savings larger. Always plan in inflation-adjusted terms — the nominal numbers are misleading.
When should I start saving for retirement?
As early as possible. The difference between starting at 25 vs 35 is enormous — for the same target, you need to save roughly 3.5x more per month if you start at 35. Even small amounts invested at 25 compound dramatically by 60.
Should I use different returns for pre and post retirement?
Yes, absolutely. Pre-retirement you can invest aggressively (10–12% equity-heavy). Post-retirement, you shift to conservative allocation (7–8% balanced) to reduce volatility. A market crash in the first years of retirement is far more damaging than one in your 30s.
What about healthcare costs in retirement?
Healthcare is the single biggest wildcard. Medical inflation in India is 10–15% annually, higher than general inflation. Budget separately for health insurance (₹25–50 lakh cover with super top-up) and keep a medical emergency fund. Don't rely on the corpus alone for healthcare surprises.
How long should I plan for retirement?
Plan for 30 years or more. If you retire at 55 and live to 85, that's 30 years. If you retire at 50, it's 35 years. Longer retirements need bigger corpora because you're drawing down for more years. Using a life expectancy of 90+ is prudent given increasing longevity.
Is ₹1 crore enough to retire in India?
For a frugal lifestyle in a low-cost city, possibly. For a comfortable middle-class lifestyle in a metro, no — you'd need ₹3–7 crore depending on age and lifestyle. The 4% rule on ₹1 crore gives ₹40,000/month in year 1, which is below the median urban household expense.
Reviewed by AutoWealthLab Editorial Team
This calculator and its accompanying guide are maintained by the AutoWealthLab editorial team. Every formula is verified against standard financial references, and results are cross-checked with independent calculators before publishing. Our tools are updated whenever tax rules, interest rate benchmarks, or regulatory formulas change.
Last reviewed: October 2026 · Methodology: Standard amortization and compound interest models · Learn more about our testing process