F.I.R.E. Calculator

Financial Independence, Retire Early

Stop guessing. Find out exactly how much money you need to quit your job forever. We use your current expenses, the "Rule of 25", and long-term inflation to give you your true global FIRE Number.

Find Your Target Corpus

Enter your details to calculate your ultimate goal.

Lifestyle spending only.

20x (Lean) 25x (Standard) 50x (Fat)

Your F.I.R.E. Number

₹0

Years to FIRE

0 Yrs

Future Monthly Exp.

₹0

The Impact of Inflation

How your expenses will grow by the time you retire.

₹0
Today
₹0
At Retire

Take this target to our Reverse SIP Planner to calculate your monthly investments.

Find Required SIP →

Understanding F.I.R.E. Globally

A complete guide to Financial Independence and Early Retirement.

What is the FIRE Number?

Your FIRE number is the total amount of money you need to have invested so that the passive returns cover all your living expenses indefinitely, allowing you to stop working entirely if you choose to. It acts as a safety net that protects your lifestyle against the uncertainty of a job.

The 4% Rule & Trinity Study

The Rule of 25 is derived from the famous Trinity Study. It concluded that if you have a portfolio composed of 50% to 75% equities, you can safely withdraw 4% of its initial value every year (adjusted for inflation) for 30 years without running out of money. This means you need a corpus that is exactly 25 times your annual expenses.

The 4 Types of F.I.R.E. Movements

Lean FIRE

Retiring with a minimalist lifestyle. You calculate your corpus based only on strict necessities like food, basic shelter, and healthcare. This strategy often uses a 20x multiplier but requires extreme frugality and low overheads.

Standard FIRE

The traditional approach for the modern investor. You aim to maintain your current lifestyle post-retirement without sacrifices. This strictly relies on the standard 25x multiplier and the 4% safe withdrawal rate as your financial baseline.

Fat FIRE

Retiring with a large budget for luxury, extensive travel, and premium living. Requires a massive corpus, often calculated using a 30x to 50x multiplier, providing a conservative 2-3% withdrawal rate to handle higher spending patterns.

Barista / Coast FIRE

You save enough early on so that your investments grow to your FIRE number through compounding without needing more contributions (Coast). Meanwhile, you work a low-stress, part-time job just to cover current daily expenses (Barista).

The Math: F.I.R.E. Formula

1. Future Exp = Current Exp × (1 + Inflation)^(Years)

2. FIRE Target = (Future Exp × 12) × Multiplier

Our calculator automatically compounds your current expenses by the inflation rate over your remaining working years before applying the chosen withdrawal multiplier.

How Does This Calculator Work?

1

Time Horizon Calculation: We calculate your "Years to FIRE" by subtracting your Current Age from your Retirement Age, defining the time compounding has to work.

2

Inflating Future Expenses: We inflate your current monthly expenses using the Expected Inflation Rate. This ensures you account for the rising cost of goods at the time you stop working.

3

Applying the Multiplier: We multiply your Future Annual Expenses by the FIRE Multiplier (default 25x) to give you your True Target Corpus based on the 4% safe withdrawal rule.

Frequently Asked Questions

1

Should I use 20x or 25x Multiplier?

25x is the standard benchmark for a 30-year retirement. If you plan to retire very early (e.g., in your 30s) and need your money to last 40-50 years, experts recommend a more conservative 30x or 33x multiplier to ensure the principal doesn't deplete too early.

2

Do I include investments in Monthly Expenses?

No. Only include actual lifestyle costs such as rent, groceries, travel, and healthcare. Once you retire, you stop saving and investing for retirement, so those outflows are no longer part of your monthly expense requirement.

3

Does the Rule of 25 account for taxes?

It does not. To be safe, you should add a 10-15% buffer to your estimated monthly expenses to account for future tax liabilities on your withdrawals, or use a higher multiplier like 30x to cover the tax gap.

4

Is the FIRE number achievable with only a salary?

Yes, but it requires aggressive saving—often 50% or more of your income—and early entry into high-growth assets like equity mutual funds. Starting your journey early is the biggest advantage for salaried professionals.

5

Can I retire early if I don't reach my FIRE number?

Retiring before reaching your number is risky unless you have secondary income sources like rental properties or part-time freelance work. This is often referred to as Barista FIRE, where side income reduces the withdrawal pressure on your corpus.

6

How often should I check my FIRE progress?

Ideally, once or twice a year. Use this calculator to re-adjust for changes in lifestyle inflation, salary hikes, or your target retirement age. Regular tracking keeps you focused and allows for necessary course corrections.