FIRE calculator
Your financial independence number, and when you’ll reach it.
₹50,000 (50 thousand) · What you expect to spend each month after you stop working
₹10,00,000 (10 lakh)
₹40,000 (40 thousand) · Assumed to rise with inflation every year
4% is the classic rule; 3–3.5% is safer with higher inflation or an early start
Your FIRE number
₹1,71,42,857
Reached in 21 years, at age 51
- Yearly expenses today
- ₹6,00,000
- FIRE number (28.6× yearly expenses)
- ₹1,71,42,857
- Same amount in future money
- ₹5,82,78,233
- Years to financial independence
- 21
- Age at financial independence
- 51
FIRE number = yearly expenses ÷ withdrawal rate, in today’s money. Growth uses the real return, (1 + return) ÷ (1 + inflation) − 1, with savings rising with inflation. Returns vary, so review your plan every year.
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How to calculate your FIRE number
- 1
Enter your age and monthly expenses.
- 2
Add your investments and how much you invest each month.
- 3
Set the expected return, inflation and safe withdrawal rate.
- 4
See your FIRE number and the age you reach it.
What FIRE means
FIRE stands for financial independence, retire early. You’re financially independent when your investments can pay your living costs indefinitely, so work becomes optional. The amount you need is your FIRE number, and the calculator shows it along with how many years it will take at your current saving rate.
A financial independence calculator and early retirement calculator using the 4 percent rule to find your FIRE number.
The FIRE number
FIRE number = yearly expenses ÷ safe withdrawal rate
At a 4% withdrawal rate, that’s 25 times your yearly expenses: spending 50,000 a month (6 lakh a year) needs 1.5 crore (15 million) in today’s money. At 3.5%, it’s about 28.6 times, or 1.71 crore.
Choosing a withdrawal rate
The famous 4% rule comes from US research on 30-year retirements. An early retirement can last 40–50 years, and countries with higher inflation make the same withdrawal riskier, so many planners in India use 3–3.5%. In lower-inflation countries, 3.5–4% is common.
How the timeline is worked out
Everything is calculated in today’s money using the real return: (1 + return) ÷ (1 + inflation) − 1. With a 10% return and 6% inflation, the real return is about 3.8%. Your monthly investment is assumed to rise with inflation each year. When the corpus reaches the FIRE number, you’ve arrived. The result also shows that number in future money, which is what your account will actually display.
Getting there sooner
Your savings rate matters more than anything else. Spending less does double duty: you invest more and need a smaller FIRE number. Plan the traditional route alongside with the retirement calculator, and model your monthly investing in the SIP calculator.
Frequently asked questions
What is a FIRE number?
The investments you need to live off their returns forever: yearly expenses ÷ safe withdrawal rate. At 4%, that’s 25 times your yearly expenses.
Is 4% a safe withdrawal rate?
The 4% rule comes from US market history over 30-year retirements. With higher inflation or a retirement of 40+ years, many planners use 3–3.5%.
Why does the calculator use a real return?
Working in today’s money keeps the FIRE number comparable to your current expenses. The real return is the investment return minus the effect of inflation.
What can I change to reach FIRE sooner?
Your savings rate matters most: spending less both raises what you invest and lowers the FIRE number.