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Retirement Calculator

Finance & Investment

Calculate your retirement corpus and monthly income. Enter current age, savings, monthly investment, returns and inflation to plan your retirement.

Reviewed by the thecalcu.com team Ā· Last updated June 24, 2026

Current Age
yrs
18 yrs70 yrs
Retirement Age
yrs
40 yrs80 yrs
$
Monthly Investment
$
$1000$500000
Expected Return
%
6%30%
Inflation Rate
%
1%15%
Monthly Expenses at Retirement
$
$10000$500000

Retirement Corpus (Age 60)

$0

0 years to retirement Ā· Today's value: $0

ā— Invested $0ā— Gains $0

Monthly Income (4%)

$0

Total Invested

$0

Wealth Created

$0

Today's Equivalent

$0

Retirement Readiness

On Track āœ“

Corpus Required

$0

Monthly Surplus

$0

What is a Retirement?

A Retirement Calculator estimates the corpus you will accumulate by your target retirement age and tells you whether it is sufficient to fund your post-retirement lifestyle. It combines two growth streams, compounding of your existing savings and the future value of ongoing monthly contributions, to project your total retirement wealth.

For Indian investors, retirement planning involves navigating a range of instruments: EPF, PPF, NPS, and equity mutual funds, each with different return profiles, tax treatments, and lock-in periods. The goal is to arrive at a single consolidated corpus number that, together with the 4% safe withdrawal rule, generates enough monthly income to cover your inflated post-retirement expenses.

This calculator uses the Mifflin-St Jeor compound interest model for SIP contributions and a separate lump-sum compounding calculation for existing savings. It then adjusts the projected corpus downward using your specified inflation rate to show what your retirement wealth is worth in today's purchasing power.

Key outputs:

  • Retirement Corpus, nominal value of your accumulated wealth at retirement age
  • Corpus in Today's Value, inflation-adjusted real purchasing power of that corpus
  • Monthly Income (4% Rule), sustainable monthly withdrawal without depleting the corpus

Pair with the SIP Calculator to model your equity mutual fund contributions in detail, the PPF Calculator for tax-free debt accumulation, and the NPS Calculator for pension-specific projections.

Why Use a Retirement Calculator?

Most people significantly underestimate how much they need to retire. Common mistakes include:

  • Planning for today's expenses without accounting for inflation, ā‚¹75,000/month today requires ā‚¹2.4 lakh/month in 20 years at 6% inflation
  • Treating EPF as "enough", EPF alone typically covers only 20ā€“30% of retirement needs
  • Underestimating life expectancy, planning only to age 75 when you may live to 85 or 90
  • Not accounting for healthcare inflation, which runs 10ā€“15% per year

A retirement calculator makes the mathematics transparent: enter your current savings, monthly contributions, expected return, and inflation, and instantly see whether your current trajectory builds sufficient corpus, or how much more you need to invest.

Who Should Use This Calculator?

Working professionals in their 20sā€“30s who want to start saving but are unsure how much is enough, this calculator quantifies the monthly investment needed to hit a retirement corpus target.

Mid-career savers in their 40s who want to check whether they are on track and how much additional investment would close any corpus gap.

Pre-retirees in their 50s doing final-decade adjustments, shifting from accumulation to preservation, modelling conservative return scenarios.

Financial advisors and wealth managers running retirement projections for clients across different income levels and investment horizons.

Self-employed individuals and freelancers who do not have mandatory EPF contributions and must plan their retirement corpus entirely from personal savings, use the Compound Interest Calculator alongside this for lump-sum investment modelling.

How to use this Retirement calculator

  1. Enter your Current Age and Retirement Age, the difference is your accumulation horizon (the longer, the more powerful compounding becomes).
  2. Enter your Current Retirement Savings, the sum of all existing retirement-oriented investments: EPF balance, PPF balance, NPS balance, and retirement-earmarked mutual fund corpus. Enter 0 if you are starting fresh.
  3. Set Monthly Investment, the amount you will invest every month going forward into retirement instruments (SIP, NPS contribution, PPF deposits, voluntary EPF, etc.).
  4. Set Expected Annual Return, use 10ā€“12% for equity-heavy portfolios, 8ā€“9% for balanced, 7ā€“8% for conservative/debt-heavy.
  5. Set Inflation Rate, 6% is a reasonable long-term assumption for India.
  6. Enter Monthly Expenses at Retirement (today's value), what you spend today (or expect to spend at retirement in today's rupees). The calculator inflates this to retirement-day value internally.
  7. The Retirement Corpus (highlighted) is your projected wealth at retirement. Compare it against what you need: target corpus = monthly expenses Ɨ 12 Ć· 4% = monthly expenses Ɨ 300.

Formula & Methodology

Future Value of Current Savings:   FV_savings = currentSavings Ɨ (1 + r)^n   where r = monthly return rate, n = months to retirement  Future Value of Monthly SIP:   FV_SIP = monthlyInvestment Ɨ ((1 + r)^n āˆ’ 1) / r Ɨ (1 + r)  Total Corpus:   Corpus = FV_savings + FV_SIP  Inflation-Adjusted Value:   RealCorpus = Corpus / (1 + inflationRate)^years  Monthly Income (4% Rule):   MonthlyIncome = Corpus Ɨ 4% / 12

Worked example, Age 30, retiring at 60, ā‚¹5L saved, ā‚¹20,000/month SIP, 12% return, 6% inflation:

Years to retirement: 30 (360 months) Monthly rate: 12% / 12 = 1%  FV of ā‚¹5L savings:   5,00,000 Ɨ (1.01)^360 = 5,00,000 Ɨ 35.95 = ā‚¹1,79,75,000  FV of ā‚¹20,000/month SIP:   20,000 Ɨ ((1.01)^360 āˆ’ 1) / 0.01 Ɨ 1.01   = 20,000 Ɨ 3494.96 Ɨ 1.01 = ā‚¹7,06,19,360  Total Corpus         = ā‚¹1,79,75,000 + ā‚¹7,06,19,360 = ā‚¹8,85,94,360 ā‰ˆ ā‚¹8.86 crore  Total Invested       = 5,00,000 + (20,000 Ɨ 360) = ā‚¹77,00,000 Returns Earned       = ā‚¹8.86 crore āˆ’ ā‚¹77 lakh = ā‚¹8.09 crore  Inflation-Adjusted (6% for 30 years):   ā‚¹8.86 crore / (1.06)^30 = ā‚¹8.86 crore / 5.743 = ā‚¹1.54 crore in today's value  Monthly Income @ 4%:   ā‚¹8.86 crore Ɨ 4% / 12 = ā‚¹2,95,313/month

This corpus would comfortably fund ā‚¹75,000/month expenses (inflated to ~ā‚¹4.3 lakh/month in 30 years) with significant buffer.

Frequently Asked Questions

A commonly used rule is the 25Ɨ rule: multiply your expected annual expenses at retirement by 25. If you expect to spend ā‚¹1 lakh per month (ā‚¹12 lakh/year) at retirement, you need ā‚¹3 crore in corpus. The 4% safe withdrawal rate (derived from this rule) means you can withdraw 4% of your corpus annually without depleting it over 30 years, assuming 7ā€“10% average annual returns. For India, factor in inflation at 6ā€“7% per year, your expenses in today's money will be significantly higher by the time you retire.
For long-term retirement planning in India, a 10ā€“12% annual return is a reasonable assumption for equity mutual funds (based on historical Nifty 50 returns over 20+ years). Debt instruments like EPF (8.1%), PPF (7.1%), and FDs (6ā€“7%) give lower but more stable returns. A balanced portfolio (60% equity, 40% debt) typically targets 9ā€“10% returns. Use 10ā€“12% for the equity portion in your calculator, but be conservative, even 8% over 30 years creates a substantial corpus via compounding.
The 4% rule, developed by financial planner William Bengen using US market data, says you can safely withdraw 4% of your retirement corpus per year for 30+ years without running out of money. In India, with higher inflation (6ā€“7% vs. 2ā€“3% in the US) and different market dynamics, some advisors suggest a more conservative 3ā€“3.5% withdrawal rate, especially for retirements lasting 35+ years. The calculator uses 4% as a reference point, adjust your target corpus upward if you expect to live well past 80 or anticipate higher healthcare costs.
Inflation is the single biggest risk to retirement planning in India. At 6% annual inflation, ā‚¹75,000/month in today's money requires approximately ā‚¹2,40,000/month in 20 years and ā‚¹4,30,000/month in 30 years. This means your retirement corpus needs to be large enough to support the inflated expense level, not today's level. This calculator shows the 'Corpus in Today's Value' to help you understand what your projected corpus is really worth in purchasing power terms after decades of inflation.
A common guideline is to save 15ā€“20% of your gross income for retirement, starting in your 20s. The earlier you start, the less you need to save monthly, thanks to compounding. For example, to build a ā‚¹5 crore corpus by age 60 assuming 12% annual returns: starting at 25 requires ā‚¹7,400/month; starting at 30 requires ā‚¹13,300/month; starting at 35 requires ā‚¹24,700/month; starting at 40 requires ā‚¹48,600/month. This calculator lets you model exactly how much you need to invest monthly given your specific targets.
Tax-advantaged options: EPF (mandatory for salaried employees, 8.1% interest, tax-free maturity); PPF (7.1%, ā‚¹1.5L/year limit, 15-year lock-in, EEE status, tax-free at all three stages); NPS (market-linked, 60% lump sum tax-free at 60, 40% must be annuitised). Market-linked growth: ELSS mutual funds (3-year lock-in, 10% LTCG tax after ā‚¹1L gains); direct equity or index funds for the longest horizon. A retirement portfolio typically blends EPF/NPS (stable foundation) with equity mutual funds (growth) and PPF (tax-free debt).
Employee Provident Fund (EPF) is a mandatory retirement savings scheme for Indian salaried employees. Both employee and employer contribute 12% of basic salary each month to the EPF account. The current interest rate is 8.1% per annum (FY 2024-25). Withdrawal at age 58 (or after retirement) is fully exempt from tax if service is 5+ years. For a salary of ā‚¹50,000/month with 40% basic, EPF accumulation over 30 years at 8.1% can reach ā‚¹2ā€“3 crore, forming a significant part of retirement corpus alongside NPS and mutual fund investments.
National Pension System (NPS) is a government-regulated market-linked pension scheme open to all Indian citizens. Returns depend on your asset allocation across equity (E, up to 75%), corporate bonds (C), and government securities (G). On retirement at 60, you can withdraw 60% as a lump sum (tax-free) and must use the remaining 40% to purchase an annuity (taxable income). NPS offers an extra ā‚¹50,000 deduction under 80CCD(1B) beyond the ā‚¹1.5L under 80C. Use the [NPS Calculator](/nps-calculator-india/) to model your NPS-specific corpus.
Compounding means your returns also earn returns, creating exponential growth over time. ā‚¹10,000 invested monthly at 12% for 30 years grows to approximately ā‚¹3.5 crore, but ā‚¹10,000/month for only 20 years grows to just ā‚¹99 lakh, a third of the corpus for two-thirds of the investment period. The first 10 years of investing do much of the heavy lifting. Starting retirement savings at 25 instead of 35 can mean twice the corpus with the same monthly investment. This is why retirement saving must begin the moment you start earning.
Nominal return is the stated annual return (e.g. 12% from equity). Real return is nominal return minus inflation rate (e.g. 12% āˆ’ 6% = 6% real return). For retirement planning, real returns matter more, they tell you how much your wealth is actually growing in purchasing power. A corpus of ā‚¹5 crore after 30 years sounds impressive, but if inflation was 6%, that ā‚¹5 crore buys only what ā‚¹87 lakh buys today. This calculator displays both the nominal corpus and the inflation-adjusted ('today's value') corpus so you can plan realistically.
Typically, no, if the house is your primary residence, it does not generate cash flow for retirement expenses. It is a consumption asset, not an income-generating one. However, if you plan to downsize (sell a large house and buy a smaller one, releasing equity), or rent out a portion, or move to a lower-cost city at retirement, then the property can contribute. For retirement planning purposes, count only liquid, income-generating assets: EPF, PPF, NPS, mutual funds, FDs, and rental property (net of maintenance). Do not rely solely on property appreciation to fund retirement.
Healthcare is one of the largest and most unpredictable retirement expenses in India. Medical inflation runs at 10ā€“15% per year, significantly higher than general inflation. Budget at least ā‚¹30,000ā€“50,000 per month for healthcare in retirement (in today's money) if you do not have employer-sponsored post-retirement healthcare coverage. Invest in a senior citizen health insurance policy well before age 60 (premiums are much lower and coverage easier to obtain before pre-existing conditions emerge). Factor medical corpus separately, some advisors suggest keeping ā‚¹50ā€“75 lakh in liquid FDs or debt funds exclusively for healthcare emergencies.
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