Estimate a retirement target and investment needs using your expenses, savings and assumptions. Test different inflation and return inputs; a modeled date is not a guarantee that retirement is affordable.
✓ Your chosen target age
✓ Corpus needed
✓ Monthly SIP required
✓ Inflation-adjusted
👤 Your Current Situation
Current Age
Years
18 yrs60 yrs
Current Monthly ExpensesYour total lifestyle cost today
₹
₹10K₹5L
Current Monthly Income (Take-Home)
₹
₹20K₹10L
Current Total Savings / InvestmentsMF, FD, stocks, PF etc.
Expected Investment ReturnIllustrative return; not guaranteed
% p.a.
0%20%
Post-Retirement ReturnChoose your own scenario assumption
% p.a.
0%15%
Life ExpectancyChoose a planning horizon, not a certainty
Years
60100
🔥
Your Chosen Retirement Age
—
Year —
Enter details to calculate
💰 Total Corpus Needed at Retirement
—
Inflation-adjusted to your retirement year
Monthly SIP Needed
—
Monthly Savings Rate
—
Retirement Duration
—
Monthly Expense at Retirement
—
📊 Your Savings Rate Assessment
Enter your details to see your savings rate assessment
Your Contribution Scenario
Current monthly savings—
SIP needed for FIRE target—
Additional SIP required—
Current savings already invested—
Years to FIRE—
Corpus Growth — Accumulation & Withdrawal Phase
Portfolio Value
FIRE Target
How much money do you need to retire early in India?
Your retirement number starts with your expenses, not your salary. Estimate what you will spend when you stop working, how long the money needs to last and which costs sit outside your regular budget. This FIRE calculator then models a corpus and monthly contribution for the retirement age you choose.
FIRE stands for Financial Independence, Retire Early. Financial independence means being able to cover your needs without depending on a salary. Retiring early is one possible goal; reducing working hours or changing careers may be another. The calculator explores the money side of that decision. It cannot establish whether leaving a job is safe for your family.
By The Invest Mate · Examples and source references checked 10 October 2026 · Educational scenario estimates.
Use bank statements and bills to estimate housing, food, utilities, transport, medicines, insurance premiums and family support. Add annual expenses such as travel or insurance renewal, divided by twelve. For example, ₹48,000 of annual bills adds ₹4,000 to the monthly budget.
A child's education payment, a home purchase or a large medical reserve is different from a recurring grocery bill. Keep these as separate goals unless you deliberately include them in the spending input. Do not count the same amount in both places. Use the monthly budget planner to build a starting estimate.
1. Spending todayStart with your actual recurring costs and annual bills.
2. Spending at retirementApply inflation across the years before you stop working.
3. Retirement corpusModel the selected retirement horizon, then compare the contribution with your budget.
Each stage depends on the previous one. An unrealistic expense input makes the final target less useful, even when the arithmetic is correct.
Worked example: retiring at 45 with ₹50,000 monthly expenses today
Take a hypothetical person aged 30, with ₹10 lakh already invested for retirement. They want to stop working at 45 and plan through age 85. The following rates are chosen solely to explain the calculation.
Inputs for the worked retirement-at-45 example
Input
Illustrative value
What it means
Current / retirement / planning-horizon age
30 / 45 / 85
15 years to invest; 40 retirement years
Monthly expenses today
₹50,000
Include recurring costs and annual bills divided by 12
Already invested savings
₹10,00,000
Only money available for this retirement goal
Inflation
6% per year
An assumption, not an inflation forecast
Before-retirement return
10% per year
Annual input divided by 12 for monthly growth
After-retirement return
7% per year
Constant annual assumption; no market losses simulated
First, increase today's ₹50,000 monthly spending by 6% annually for fifteen years: ₹50,000 × 1.0615. That becomes approximately ₹1,19,828 per month at age 45. The tool models forty retirement years and estimates a corpus of about ₹4.77 crore at that age.
Under the monthly growth convention described below, the existing ₹10 lakh grows to about ₹44.54 lakh by 45. The estimated additional month-end contribution is ₹1,04,402 per month. This is a modeled requirement, not a recommended SIP or promised investment result.
What if you cannot invest that amount?
Suppose take-home income is ₹1 lakh and recurring spending is ₹50,000. The simple income-minus-expenses surplus is ₹50,000, before debts and other goals. That does not cover the contribution in this example. Compare a later retirement age, lower retirement spending or additional reliable resources. Increasing the return input until the result looks affordable does not resolve the real funding gap.
Compare ₹30,000, ₹50,000 and ₹80,000 monthly spending
This table keeps the example's ages, ₹10 lakh starting savings and return assumptions unchanged. It changes only today's spending. Figures are rounded; corpus is money required at age 45, not its value in today's rupees.
Same retirement ages, different spending needs
Monthly spending today
Monthly spending at 45
Modeled corpus at 45
Monthly contribution
₹30,000
₹71,897
₹2,86,35,276
₹58,343
₹50,000
₹1,19,828
₹4,77,25,461
₹1,04,402
₹80,000
₹1,91,725
₹7,63,60,737
₹1,73,491
The difference explains why two people of the same age can have very different FIRE targets. A lower recurring expense has an effect over every retirement year. But a lean budget must still cover essential care, housing and responsibilities; omitting those costs produces a misleadingly small target.
Why inflation and post-retirement returns matter
At an assumed 6% inflation rate, today's ₹50,000 monthly basket costs about ₹89,542 after ten years. Your own mix of rent, healthcare and other purchases may rise at a different rate. The SEBI Investor explanation of inflation describes the loss of purchasing power.
Compare the same retirement-at-45 example with three post-retirement return assumptions. Inflation stays at 6%; accumulation return and starting savings also stay unchanged.
How the target changes when post-retirement returns change
Post-retirement return assumption
Real return after 6% inflation
Modeled corpus at age 45
4%
-1.89%
₹8,70,63,113
6%
0.00%
₹5,75,17,397
7%
0.94%
₹4,77,25,461
If the return and inflation inputs are both 6%, the real return is zero. The target becomes annual spending at retirement multiplied by forty years. If return is below inflation, purchasing power shrinks and the modeled target becomes larger. These are constant-rate illustrations; real investment returns arrive unevenly.
Is ₹1 crore or ₹2 crore enough to retire?
The amount alone cannot answer that question. With no returns, no inflation and no extra costs, ₹1 crore divided by ₹6 lakh of annual spending covers about 16 years and 8 months. ₹2 crore covers about 33 years and 4 months. These deliberately simplified checks show the importance of spending and time; they are not realistic retirement forecasts.
Also specify when you will have that money. ₹2 crore today and ₹2 crore fifteen years from now do not buy the same basket. The calculator's corpus result is expressed at your chosen retirement age. It does not automatically include tax, large emergencies or an inheritance target.
What about the 25-times-expenses shortcut and 4% rule?
Multiplying annual spending by 25 is the arithmetic equivalent of starting with a 4% withdrawal: ₹6 lakh × 25 = ₹1.50 crore. This is a shortcut, not a guarantee that funds last through an early retirement. This calculator instead uses your chosen horizon, inflation and post-retirement return. A forty-year horizon and a low real return can give a very different result.
How this FIRE calculator works
Enter your current age and a later retirement age. Choose a planning-horizon age above retirement.
Enter documented spending, take-home income and existing retirement savings. Money earmarked for another goal is not automatically available.
Try several explicitly labelled return and inflation scenarios. Defaults are examples, not forecasts.
Read the contribution gap alongside the corpus. Check whether that contribution fits your actual budget.
Method: monthly spending at retirement equals today's spending × (1 + inflation)years until retirement. The real annual return is (1 + post-retirement return) ÷ (1 + inflation) − 1. The corpus is the present value of annual, year-end, inflation-linked withdrawals over the full selected horizon. At zero real return it equals annual retirement spending × retirement years.
Before retirement, the annual return input is divided by twelve and compounded monthly. Existing savings grow on that basis; new contributions arrive at month-end. The chart samples accumulation annually and displays up to twenty retirement years. The target calculation uses the complete selected horizon, even when the chart ends earlier.
What to review before making an actual retirement decision
Unexpected costs: set aside and separately review medical and other emergency needs.
Other income: pensions or rent may help, but are not automatically netted off by this model.
Market losses: negative or changing returns, including losses early in retirement, are not simulated.
Tax and costs: the result excludes tax and investment charges; use consistent assumptions and check actual documents.
Access to savings: check whether each account can actually be used at the planned age.
SEBI's retirement-planning guidance highlights emergencies, insurance, diversification and matching the plan to your goals. An appropriately registered adviser can help assess your circumstances.
FIRE calculator questions
Does this calculator tell me the earliest age I can retire?
You choose the retirement age. The tool estimates the corpus and contribution under that choice; it does not search for or certify an affordable retirement date. Try different ages and compare the funding gap.
Can I retire at 40 instead of 45?
Enter 40 as the target only if it is above your current age. Compared with retiring at 45, you have fewer years to accumulate savings and more retirement years to fund when the planning-horizon age stays the same. Compare both results using identical spending assumptions.
What are lean FIRE, fat FIRE and regular FIRE?
They are informal descriptions of lower, higher or moderate spending goals. There are no fixed corpus bands that fit every Indian household. Enter the expenses that correspond to your own goal.
Should I include my own home in current savings?
A home you will continue living in does not automatically provide cash to pay expenses. Do not count its full value as an invested retirement balance unless you have a specific, realistic plan to unlock that value. This tool does not model a home sale.
Which investment return is the correct one?
There is no single future return you can know in advance. Compare several assumptions and understand the investments, risks and costs behind them. This model accepts non-negative constant rates, but does not simulate market paths or negative-return years.
How often should I update my FIRE number?
Review it when spending, family responsibilities, savings, target age or other assumptions change. Keep a dated copy of the inputs so you can explain why the result moved instead of comparing two unexplained numbers.