Retirement & FIRE Calculator

Calculate your retirement corpus and plan your path to financial independence.

Your Details

Current Age

years

18 years70 years

Retirement Age

years

31 years80 years

Life Expectancy

years

60 years100 years

Monthly Expenses (Today)

₹

₹10,000₹10,00,000

Investment Parameters

Expected Return (p.a.)

4%20%

Expected Inflation

1%15%

Safe Withdrawal Rate

2%8%

Have Existing Savings?

Include current retirement savings

Show FIRE Numbers

Financial Independence, Retire Early

Required Retirement Corpus

₹4,81,07,032

Monthly expenses at retirement: ₹1,60,357

Real return rate: +5.66%

Years to Retirement20 years

Retirement Duration35 years

Required Monthly SIP₹52,298

Total SIP Investment₹1,25,51,607

Expected Returns₹3,55,55,425

Corpus is sufficient!

Your corpus can last indefinitely with the given withdrawal rate.

Year-by-Year Projection

Year	Age	Phase	SIP/Withdrawal	Interest	Corpus
1	31	Saving	₹6,27,576	₹34,131	₹6,67,662
2	32	Saving	₹6,27,576	₹1,14,251	₹14,15,444
3	33	Saving	₹6,27,576	₹2,03,985	₹22,52,960
4	34	Saving	₹6,27,576	₹3,04,487	₹31,90,977
5	35	Saving	₹6,27,576	₹4,17,049	₹42,41,557

What is Retirement Planning?

Retirement planning involves calculating the corpus (total savings) you'll need to maintain your lifestyle after you stop working. The goal is to build enough wealth during your working years so that withdrawals during retirement can sustain your expenses for the rest of your life.

The 4% Rule

The 4% rule is a popular guideline suggesting you can withdraw 4% of your retirement corpus annually, adjusted for inflation, without running out of money for at least 30 years. This translates to needing 25x your annual expenses as your retirement corpus (1 / 0.04 = 25).

Understanding FIRE (Financial Independence, Retire Early)

FIRE is a movement focused on extreme savings and investment to retire much earlier than traditional retirement age. Different FIRE variants exist based on lifestyle preferences:

Lean FIRE: Minimal expenses, frugal lifestyle (typically 70% of normal expenses)
Regular FIRE: Current lifestyle maintained (100% of expenses)
Fat FIRE: Comfortable lifestyle with luxuries (typically 150% of expenses)
Coast FIRE: Having enough saved that compound growth alone reaches your FIRE number by traditional retirement age

Why Inflation Matters

Inflation erodes purchasing power over time. If you spend ₹50,000/month today, at 6% inflation you'll need approximately ₹1.6 lakh/month in 20 years to maintain the same lifestyle. This calculator accounts for inflation in both the accumulation phase (growing your corpus) and withdrawal phase (increasing expenses).

How This Calculator Works

This calculator estimates your retirement corpus requirement based on your current expenses, expected inflation, and chosen withdrawal rate. It then calculates the monthly SIP needed to reach that corpus.

Required Corpus Formula:

Corpus = (Annual Expenses at Retirement) / Withdrawal Rate

Expenses at Retirement:

Future Expenses = Current Expenses × (1 + Inflation)^Years

The required monthly SIP is calculated using the reverse SIP formula to fill the gap between your current savings (if any) and the required corpus.

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