Coast FIRE means having enough money invested today such that without saving another rupee, your existing corpus will compound on its own to reach your target retirement goal by your desired retirement age. You only need to earn enough to pay current living expenses.

What is the difference between Lean FIRE and Fat FIRE?

Lean FIRE covers essential bare-bones living expenses (typically 70-75% of current expenses, assuming frugality and paid-off housing). Fat FIRE allows an abundant lifestyle with luxury travel and premium healthcare (typically 125-150% of current expenses).

How does SIP step-up affect my time to achieve FIRE?

Increasing your monthly investment by 5% to 10% each year as your salary increases can cut down your time to financial independence by 4 to 8 years, significantly accelerating portfolio compounding.

Financial Independence

FIRE Calculator India (Financial Independence Retire Early)

Calculate your exact FIRE corpus, years to financial freedom, and milestone targets across Lean FIRE, Fat FIRE, Coast FIRE, and Barista FIRE with realistic Indian inflation.

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Adjust Parameters

Current Ageyears

years

1875

Target Early Retirement Ageyears

years

2585

17 years of accumulation

Current Monthly Living Expenses₹

₹

10,00020,00,000

Current monthly household expenditure (excluding loan EMIs).

Current Invested Net Worth (Equity/Debt/Gold)₹

₹

010,00,00,000

Current value of all liquid investments earmarked for retirement.

Monthly Investment (SIP)₹

₹

020,00,000

Amount invested each month towards your early retirement corpus.

Annual SIP Step-Up (%)%

025

Increasing your savings each year accelerates your FIRE milestone.

Expected Inflation (p.a.)%

312

Indian long-term CPI benchmark is 6.0%.

Safe Withdrawal Rate (SWR)%

2.55

3.5% recommended for 40+ year Indian retirements.

Target FIRE Corpus Required

₹5,53,94,057

Projected Net Worth at Age 45: ₹5,20,09,240

FIRE Status

Deficit of ₹33,84,817

Action needed

Future Monthly Expenses

₹1,61,566

At retirement age 45 (6% inflation)

Safe Withdrawal Rate

3.5% p.a.

Corpus multiplier: 28.6x expenses

Retirement Longevity

44+ Years

Post-retirement real return: 2.36%

You are currently facing a projected deficit of ₹33,84,817 by target retirement age 45. To bridge this gap, consider stepping up your monthly investment, increasing your pre-retirement equity exposure, or planning for a Barista FIRE transition.

FIRE Variations & Lifestyle Tiers

Lean FIRE (75%)

₹4,15,45,543

Frugal, bare-necessities retirement

Fat FIRE (135%)

₹7,47,81,977

Abundant lifestyle, travel & cushion

Coast FIRE Today

₹80,67,831

Corpus needed today to coast without saving

Barista FIRE (50%)

₹2,76,97,029

Semi-retirement with part-time work

FIRE Accumulation Roadmap

Age	Portfolio Balance	FIRE Target	Status
Age 28	₹15,00,000	₹2,05,71,429	Accumulating
Age 29	₹23,18,325	₹2,18,05,714	Accumulating
Age 30	₹32,66,765	₹2,31,14,057	Accumulating
Age 31	₹43,62,530	₹2,45,00,914	Accumulating
Age 32	₹56,24,974	₹2,59,70,943	Accumulating
Age 33	₹70,75,859	₹2,75,29,200	Accumulating
Age 34	₹87,39,645	₹2,91,80,971	Accumulating
Age 35	₹1,06,43,819	₹3,09,31,829	Accumulating

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FIRE Number & Safe Withdrawal Rate Formulas

Transparent mathematical formulas and assumptions used across our financial engines.

Mathematical Formula

FIRE Corpus = (Current Annual Expenses × (1 + i)^n) / SWR

Variables & Legend

Expenses

Current annual living expenditure

Expected annual inflation rate (typically 6%)

Target Retirement Age minus Current Age

SWR

3.5% recommended for long Indian retirements

Step-by-Step Calculation

Future Annual Cost of Living: Future Expenses = Current Annual Expenses × (1 + Inflation)^Years
Compounding expenses over the accumulation phase to reflect true purchasing power needs.
Determine Required FIRE Number: FIRE Corpus = Future Annual Expenses / (SWR / 100)
At a 3.5% Safe Withdrawal Rate, the corpus equals approximately 28.57 times annual expenses.
Simulate Investment Accumulation: Future Net Worth = Initial Corpus × (1+r)^n + SIP Annuity with Annual Step-Up
Compounding existing investments alongside increasing monthly SIP contributions.
Calculate Coast & Alternative Tiers: Lean FIRE = 75% | Fat FIRE = 135% | Coast FIRE = Target / (1+r)^n
Evaluate multi-tier lifestyle thresholds and milestone independence levels.

Frequently Asked Questions

The original Trinity Study assumed a 30-year retirement in the United States with historical inflation of 3%. Early retirement in India often spans 40 to 50 years with higher structural CPI inflation (6-7%). A 3.25% to 3.5% SWR provides safety margin against sequence-of-returns risk and medical cost spikes.

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