Investment Calculator

F.I.R.E Calculator
Find Your Financial Independence Number

Inflation-Adjusted Projection  |  Modest / Comfortable / Affluent  |  Always Free
SIP Step-Up SIP Lumpsum F.I.R.E
F.I.R.E Parameters
Current Age
yrs
2075
Retirement Age
yrs
2590
Current Annual Expense (₹)
₹5L₹5 Cr
Assumed Inflation (p.a.)
%
1%15%
Annual Expense at Retirement
—
per year
Your F.I.R.E Number Range
Modest Comfortable Affluent
—
—
—
Modestℹ
25x annual expense at retirement
—
Comfortableℹ
35x annual expense at retirement
—
Affluentℹ
50x annual expense at retirement
—
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F.I.R.E Calculator — Financial Independence

F.I.R.E Calculator — Estimate Your Financial Independence Target

The FIRE Calculator helps you estimate how much corpus you may need to achieve Financial Independence and Early Retirement. The core idea is simple: accumulate enough investments so that the returns they generate can permanently cover your annual living expenses — and you never have to work for money again.

What is FIRE?

FIRE stands for Financial Independence, Retire Early. The goal is to build a corpus large enough that its returns cover your living expenses every year. Once your investment income exceeds what you spend, you are financially independent. Many FIRE pursuers save 40–60% of their income during their working years to reach this point significantly earlier than the conventional retirement age of 60.

Example: Annual Expense ₹20 Lakh, Retiring at 50

Current age: 45  |  Current annual expenses: ₹20,00,000  |  Retirement age: 50  |  Inflation: 6% p.a.

With 5 years to retirement, at 6% inflation, that ₹20L annual expense grows to approximately ₹26.8 lakh per year by age 50.

Modest Corpus (25x) — also known as Lean FIRE: ~₹6.69 Crore
Comfortable Corpus (35x) — also known as Standard FIRE or simply FIRE: ~₹9.37 Crore
Affluent Corpus (50x) — also known as Fat FIRE: ~₹13.38 Crore

This example illustrates why the F.I.R.E number feels surprisingly large at first glance. You are not just funding ₹20 lakh of today's expenses — you are funding ₹26.8 lakh of inflation-adjusted expenses every year, for potentially 35–40 years, with no salary coming in. Inflation compounds relentlessly even after you retire, which is why the corpus required is far larger than most people initially expect.

Modest, Comfortable, Affluent — What Each F.I.R.E Level Means

Modest (25x) — also known as Lean FIRE — the minimum that makes early retirement mathematically possible. No buffer at all. An unexpected expense, a prolonged market correction, or living longer than planned can place serious stress on this corpus.

Comfortable (35x) — also known as Standard FIRE or simply FIRE — the level most qualified financial planners in India would recommend. Absorbs inflation surprises, handles periodic large expenses, and lets you live without watching every rupee.

Affluent (50x) — also known as Fat FIRE — financial worry largely disappears at this level. Even if inflation runs above your assumptions or you live considerably longer than planned, this corpus holds up.

Why Retirement Duration Matters More Than Retirement Age

Retiring at 45 instead of 60 is not simply a 15-year difference in when you stop working — it means your corpus must sustain you for 15 to 20 more years. A 15-year retirement and a 40-year retirement demand completely different corpus sizes, because inflation compounds without interruption for every year of your retirement, and healthcare costs tend to escalate steadily as you age.

India's long-run inflation has averaged around 6% per year. At that rate, ₹1 lakh today becomes ₹3.2 lakh in 20 years and over ₹10 lakh in 40 years. Your F.I.R.E corpus must fund a lifestyle that keeps getting more expensive — not the one you live today.

The widely cited 25x Rule was designed around Western inflation and equity return assumptions. In India, with structurally higher long-run inflation and the possibility of a 35–45 year retirement, targeting 30 to 40 times your inflation-adjusted annual expenses is a far more prudent foundation for anyone planning to retire well ahead of the conventional age.
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