Updated 21 October 2026

Quick answer: Your FIRE number is the investment corpus you need to live off your investments for good. It equals your annual expenses divided by a safe withdrawal rate: at 4%, that's 25 times your annual expenses; at a more cautious 3.5%, about 28.6 times. Someone spending ₹6 lakh a year needs about ₹1.71 crore in today's money at a 3.5% withdrawal rate. Use the free calculator below to find your FIRE number and how many years it could take to reach it, including inflation and a yearly increase in your investments.

FIRE number in today's money—
Years to financial independence—
Age at financial independence—
Corpus needed at that time—
Annual expenses at that time—
Year-by-year progress
AgeInvestmentsFIRE number that yearProgress

Assumes steady returns and inflation, with investments added monthly. Real markets are uneven, so treat the result as a guide, not a promise.

What Is a FIRE Number?

FIRE stands for Financial Independence, Retire Early. Financial independence means having enough invested that the returns can cover your living costs indefinitely, so work becomes optional. Your FIRE number is the size of that investment pot.

The basic formula is:

FIRE number = annual expenses ÷ safe withdrawal rate

  • At a 4% withdrawal rate: annual expenses × 25
  • At 3.5%: annual expenses × about 28.6
  • At 3%: annual expenses × about 33.3

Our full guide to the FIRE movement explains the philosophy and lifestyle choices behind it.

Where Does the 4% Rule Come From?

In 1994, US financial planner William Bengen studied historical US stock and bond returns and found that a retiree who withdrew 4% of their portfolio in the first year, then increased the amount with inflation each year, would not have run out of money over any 30-year period in his data. A later study by three professors at Trinity University (1998) reached similar conclusions. This became known as the "4% rule".

The rule has important limits:

  • It was based on US market history and a 30-year retirement. Someone retiring at 40 may need their money to last 50 years or more.
  • Inflation in India has historically been higher than in the US, which is why many Indian financial planners suggest a more cautious withdrawal rate, often around 3% to 3.5%, for early retirees.
  • A bad market in the first few years of retirement, called sequence-of-returns risk, can do lasting damage.

That's why this calculator starts at 3.5%. Try 3% and 4% to see the range.

How to Use This FIRE Calculator

  1. Annual expenses: what you spend in a year today, including rent or EMIs, food, bills, insurance, travel and occasional big expenses. Be honest; this number drives everything.
  2. Current investments: money already invested for this goal (exclude your home and emergency fund).
  3. Monthly investment and yearly increase: what you invest now and how much you expect to raise it each year.
  4. Expected return and inflation: long-term assumptions. Test cautious numbers.
  5. Safe withdrawal rate: how much of the corpus you plan to withdraw in the first year of retirement.

The calculator increases your expenses with inflation every year, so the target keeps moving. Financial independence is reached when your investments catch up with that rising target.

Worked Example

Priya (an illustrative example) is 30, spends ₹6 lakh a year, has ₹10 lakh invested, and invests ₹40,000 a month, raising that by 5% a year. She assumes 10% returns, 6% inflation and a 3.5% withdrawal rate.

  • Her FIRE number in today's money is about ₹1.71 crore.
  • Because of inflation, by the time she gets there she'll need about ₹6 crore.
  • She reaches it in about 21½ years, at around age 51.

If she raises her monthly investment to ₹60,000, she gets there in about 16 years, at around 46. Using a 4% withdrawal rate instead of 3.5% would bring the date forward by about two years, with a bit more risk.

How to Reach FIRE Faster

  • Raise your savings rate. This is the most powerful lever, because it both increases what you invest and lowers the expenses you need to cover.
  • Cut big recurring costs first: housing, cars and high-interest debt matter more than small daily expenses.
  • Increase your income through skills, promotions or a side business.
  • Invest consistently in a diversified, low-cost portfolio. Our portfolio diversification guide covers the basics.
  • Avoid lifestyle inflation when your income rises.
  • Consider "Coast FIRE" or "Barista FIRE": reach a point where you can work less or in a job you enjoy, rather than stopping work entirely.

What the Calculator Doesn't Include

  • Healthcare: without employer health insurance, medical costs can rise sharply. Budget for a good health insurance policy.
  • Big one-off goals: children's education, weddings or a house purchase need separate planning.
  • Taxes on investment withdrawals.
  • Market volatility: real returns arrive unevenly. Keep a cash buffer of one to three years of expenses when you retire.

Frequently Asked Questions

How much money do I need to retire early in India?

It depends on your expenses. A common rule of thumb is 25 to 33 times your annual expenses, depending on your withdrawal rate. For ₹6 lakh a year, that's about ₹1.5 crore to ₹2 crore in today's money.

Is the 4% rule safe?

It worked across most historical 30-year periods in the US, but early retirees with longer time horizons, or people in countries with higher inflation, often use a lower rate, such as 3% to 3.5%, for extra safety.

Should I include my house in my FIRE number?

Usually not, unless you plan to sell it or rent it out. A paid-off home does reduce your expenses, which lowers your FIRE number.

What return should I assume?

Use a cautious long-term figure for your actual asset mix, and test a range. Overestimating returns is one of the most common planning mistakes.

Related Guides

This calculator is for education only and isn't personalised financial advice. Investment returns are not guaranteed.