FIRE Calculator
Compute your FIRE number using the 4 percent rule and project your corpus growth in India. Free, inflation aware FIRE calculator with retirement age planning.
FIRE stands for Financial Independence Retire Early. The idea is to build a corpus large enough that withdrawing roughly 4 percent of it each year can sustain your living expenses indefinitely, freeing you from the need to earn an active income. The FIRE calculator on this page tells you the corpus you need (your FIRE number), projects how your current investments and contributions will grow, and shows whether you are on track to retire at the age you want.
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Investments
Why use the FIRE Calculator
Most retirement guidance in India is built around employer pensions and a vague target like 1 crore. The FIRE framework is more rigorous. It starts from your actual monthly expenses, inflates them to the year you want to retire, multiplies by a withdrawal rule (typically 25 to 33 times annual expenses) and tells you the precise corpus you need. The calculator then projects your current investments and ongoing SIPs to see whether they reach that corpus. If they fall short, you know how much more to invest, how many more years to work, or how much to lower expenses.
Benefits at a glance
Corpus required, in inflated rupees
The calculator inflates your current monthly expenses to the year you plan to retire and multiplies by your chosen withdrawal multiplier. The result is the actual corpus needed in future rupees, not today's rupees.
Projection versus target chart
Two curves on the same chart. Your projected corpus growth based on current investments and contributions, against the inflation adjusted target. Where they cross is when you achieve FIRE.
Pre and post retirement returns separated
Equity heavy returns of 11 to 12 percent during your earning years and conservative 7 to 8 percent post retirement returns reflect the typical asset shift in retirement. Both are inputs you can override.
Withdrawal rule is configurable
Switch between the 4 percent rule (25 times annual expenses) and a more conservative 3 percent rule (33 times). The Indian context often justifies the more conservative number due to longer life expectancy and uncertain healthcare inflation.
How to use the FIRE Calculator
- 1
Enter your current age and target retirement age
If you are 30 and want to retire at 50, you have 20 years to build the corpus. Setting an aggressive retirement age makes the maths harder; a more realistic age makes it easier.
- 2
Enter your current monthly expenses
Use your actual current expenses, not a wish. Include rent or EMI, food, utilities, transport, insurance, school fees and discretionary spending. Round to the nearest 5,000.
- 3
Enter current investments and monthly contribution
Sum of equity, mutual fund, PPF, EPF, NPS and FD balances. Then add the monthly amount you currently invest across all of these.
- 4
Set the return and inflation assumptions
Pre retirement return of 11 to 12 percent for an equity heavy portfolio. Post retirement return of 7 to 8 percent for a more conservative mix. Inflation of 6 percent matches India's long run average.
- 5
Read the projection
If projected corpus is above the FIRE number, you are on track. If below, the gap tells you whether to invest more, work longer or trim expenses. Often a small change in any one input shifts the FIRE date by years.
Frequently asked questions
What is the 4 percent rule?
The 4 percent rule comes from the Trinity study in the United States, which found that withdrawing 4 percent of a balanced portfolio in year one and adjusting the rupee amount upward for inflation each year sustained the portfolio for 30 years in 95 percent of historical scenarios. The implied corpus is 25 times annual expenses. The rule is a planning heuristic, not a guarantee, and Indian conditions (longer retirement, healthcare inflation, fewer investment options at safe returns) often justify a more conservative version.
Should I use 25 times or 33 times annual expenses for India?
Twenty five times (4 percent) is the classic rule. Thirty three times (3 percent) builds in a margin of safety, which makes sense if you plan a 35 to 40 year retirement, expect Indian healthcare inflation to outpace headline CPI, or prefer not to depend on equity returns staying historically high. Many Indian financial planners recommend 30 to 35 times for plans that go beyond age 80.
Should I include PF and PPF in my FIRE corpus?
Include EPF and PPF if you can access them by your target retirement age and intend to draw on them for living expenses. PPF has a 15 year lock in and EPF can be partially withdrawn after a 5 year service period, with full withdrawal at retirement. If you retire at 50 and these instruments are accessible, count them. If not, they are a separate tier of safety net but should not be double counted as the working corpus.
What return should I assume for the pre retirement years?
Eleven to twelve percent is a defensible long term assumption for an equity heavy Indian portfolio. If you are conservative or close to retirement, drop to 9 to 10 percent. Aggressive accumulators with high equity exposure and a long horizon sometimes plan for 13 percent, which is at the upper end of historical Indian equity returns and leaves little room for surprise.
How do I deal with healthcare and lifestyle inflation in retirement?
Headline inflation of 6 percent often understates real retirement inflation in India because healthcare and lifestyle expenses outpace the CPI. A practical workaround is to either set inflation to 7 percent in the calculator, or carry a separate health insurance plan and emergency fund outside the FIRE corpus to insulate the corpus from large medical bills.
What if I am behind on FIRE and cannot retire at my target age?
You have four levers. Save more (raise SIP and increase savings rate to 40 to 50 percent of income). Earn more (career change, side income, equity in a startup). Spend less (lower the expense baseline that the FIRE number is built on). Work longer (each extra working year compounds the corpus and reduces the years it needs to fund). Most successful FIRE plans use a combination of all four.
Is FIRE realistic in India?
Yes, but it requires a high savings rate (typically 40 to 60 percent of income) sustained over a long period, disciplined equity investing, and a willingness to keep expenses moderate even as income grows. Indian incomes have grown faster than expenses for many salaried professionals over the last decade, which has made FIRE achievable for households that started early and stayed disciplined.
Final word
FIRE is less a movement and more a clarity exercise. The calculator forces you to confront real numbers about your expenses, your savings rate and your retirement age. If the projections work, you have a plan worth executing. If they do not, the gap tells you exactly which lever to pull. Run the calculator once a year, and again whenever your income, expenses or expected retirement age change.
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