FIRE Calculator
Financial Independence, Retire Early
Find your FIRE number — the corpus you need to retire forever. We show both the 4% rule and the India-safe 3% withdrawal rate, so you can plan with confidence.
What you spend today, not at retirement
Progress toward FIRE number (3% rule)
FIRE Number (3% rule — India)
₹4.79 Cr
33× projected annual expenses at retirement
FIRE Number (4% rule — Global)
₹3.59 Cr
25× projected annual expenses at retirement
Monthly SIP needed to reach FIRE
₹89,569
Over 15 yrs at 12% · current savings grow to ₹27.37 L
Safe withdrawal/month (3%)
₹1.20 L
₹4.79 Cr × 3% ÷ 12
Safe withdrawal/month (4%)
₹1.20 L
₹3.59 Cr × 4% ÷ 12
Corpus growth to FIRE number — year by year
Related Reading
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Read articlePortfolio StrategyGoal-Based Investing: Build Portfolios Around Life Goals
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Read articleWhat is FIRE (Financial Independence, Retire Early)?
FIRE in India is fundamentally different from FIRE in the US. While the core concept—saving and investing aggressively to retire a decade or more ahead of schedule—remains the same, the assumptions used require careful adjustment for the Indian context.
A standard FIRE calculator helps you determine your retirement corpus—the exact absolute number of investments you need to sustain your lifestyle indefinitely without relying on active income. Once you reach this financial independence milestone, work becomes a choice, not a necessity.
How this early retirement calculator works
Unlike generic retirement calculators that assume flat withdrawal rates, this tool models two distinct mathematical realities. It dynamically calculates both the global standard (the 4% rule) and the designated safe withdrawal rate for India (the 3% rule) in parallel.
By inputting your current monthly expenses, expected inflation, and expected portfolio returns, this calculator mathematically projects your required retirement corpus across decades. It then backward-calculates the exact monthly SIP needed to bridge the gap and securely hit your FIRE number.
The math behind your FIRE number
FIRE planning involves three sequential calculations: inflating your expenses to retirement date, applying a safe withdrawal rate to find your target corpus, then back-calculating the SIP needed.
Future Exp = Current Annual Exp × (1 + inflation)^years
Your Rs.6L/year today costs Rs.25.75L/year after 25 years at 6% inflation.
FIRE Number = Future Annual Expenses / withdrawal rate
4% rule: FIRE = expenses / 0.04 = 25x expenses. India-safe 3% rule: FIRE = expenses / 0.03 = 33x expenses.
P = FV * r / (((1+r)^n - 1) * (1+r))
r = annual return / 12 / 100 (monthly rate), n = years * 12 (total months). Standard Indian SIP formula inverted.
Worked example
Inputs: Age 30 → retire at 55 · ₹50,000/month expenses · 6% inflation · 12% returns · ₹0 savings
India note: The 4% rule was derived from US market data. With India's higher structural inflation and shorter equity market history, using 3% (33× expenses) gives a meaningful safety margin. We show you both — you decide.
FIRE Number vs Traditional Retirement Corpus: Why You Probably Need Less Than You Think
When someone asks "how much do I need to retire in India," they get three different answers — from their bank, a Boglehead, or an Indian finance forum. All three are talking about the same thing. The numbers are wildly different.
What's Actually Happening
Your bank uses a flat-return, flat-withdrawal model — it assumes 0% real return and that you spend the same amount forever. That's why their corpus number feels enormous and arbitrary.
A FIRE number uses a withdrawal-rate model. It assumes your portfolio keeps earning returns even after retirement. You withdraw only a fixed percentage annually, and the remaining balance keeps compounding. Mathematically, you never run out of money.
Real Numbers — ₹50,000/month expenses, retire at 50
At ₹2 crore earning 6%, you get ₹12L/yr. You need ₹19.1L. Corpus depletes within 15 years.
25× inflated annual expense of ₹19.1L. 95% portfolio survival over 30 years (US data).
33× inflated annual expense. Built-in 15% margin of safety for India's higher inflation.
Accelerate with Step-Up SIP
Once you know your FIRE number, a step-up SIP — increasing contributions 5–10% annually — is the fastest way to reach it.
Try Step-Up SIP Calculator →4% Rule vs 3% Rule in India: Which Safe Withdrawal Rate Should You Use?
The difference between 4% and 3% doesn't sound like much. But over 50 years of retirement, it's ₹2+ crore in corpus. Understanding why the rates differ is what lets you choose the right one.
Where the 4% Rule Came From
The Trinity Study (1998) tested 50 years of US stock market data across 10,000 simulations. If you withdraw 4% in year 1 and adjust for inflation each year, does your portfolio survive 30 years? Result: 95% success rate. This became the global FIRE standard.
Use 4% rule if
- · Retiring at 50 or later
- · You have secondary income — rent, pension
- · Willing to cut spending if markets fall 20%+
- · Corpus is 30–40% above the 4% target
Use 3% rule if
- · Retiring before 45 (longer horizon)
- · You want maximum safety, no plan B
- · Corpus is tight, only 20% above minimum
- · Risk-averse or new to equity investing
The Honest Take
Most people plan for 4%, hit their target, then panic when markets drop 20% in year 3. Use 3% as your baseline and treat 4% as upside. Hit 3% = already safe. Market crash = still OK. Market boom = extra cushion.
How to Calculate Your FIRE Number: 4 Steps to Your Exact Retirement Corpus
Your calculator does the math instantly. But understanding how each input moves your retirement date is where real control lives.
Not your guess — your actual spending. Track 3 months. Common ₹85,000/month breakdown:
Exclude EMIs and debt repayments — these end at retirement.
Formula: Future Expense = Current × (1 + inflation)^years
Age 30, retiring at 50, 6% inflation: ₹85,000 × 3.207 = ₹2.73 lakh/month
FIRE Corpus = Annual Expense ÷ Withdrawal Rate
4% rule
₹32.76L ÷ 0.04 = ₹8.19 Cr
3% rule (India-safe)
₹32.76L ÷ 0.03 = ₹10.92 Cr
Formula: P = FV × r / (((1+r)^n − 1) × (1+r))
Target ₹10.92 Cr, 12% return, 240 months → approx ₹28,000–32,000/month. Every 2-year delay adds ₹8,000–12,000/month.
Accelerate with Step-Up SIP →How Changing Inputs Moves Your Timeline
Lean FIRE vs Fat FIRE vs Coast FIRE: Which Early Retirement Strategy Fits You?
FIRE is not binary — retire or don't. There are four distinct paths. Pick the wrong one and you retire too early and struggle, or too late and regret the years lost.
Lean FIRE
Typical corpus
₹1.2–1.6 crore
Monthly expenses
₹30,000–40,000/month
Target corpus
₹1.2–1.6 crore
SIP approach
~₹12,000–18,000/month
Works well when
- →Retire 5–7 years earlier than Fat FIRE
- →Achievable even on ₹25–30L annual income
- →Lower monthly SIP burden throughout career
Watch out for
- ·Zero lifestyle flexibility
- ·Market crash in year 1 causes serious stress
- ·Travel and emergencies become very difficult
Best for: Young people (25–30), strong minimalism conviction, open to lower-cost cities.
Fat FIRE
Typical corpus
₹5–6 crore
Monthly expenses
₹1,20,000–1,50,000/month
Target corpus
₹5–6 crore
SIP approach
~₹70,000–90,000/month
Works well when
- →Retire comfortably — not frugally
- →Cushion to handle multiple market downturns
- →Supports family and parental obligations fully
Watch out for
- ·Requires ₹40L+ income to make SIP feasible
- ·Takes 15–20 years of sustained discipline
- ·Lifestyle creep is the biggest risk
Best for: Established professionals (35–40), income ₹40L+, unwilling to compromise on retirement quality.
Coast FIRE
Typical corpus
Build ₹2.5–3 crore by 40, then stop
Monthly expenses
Any — stop investing early
Target corpus
Build ₹2.5–3 crore by 40, then stop
SIP approach
High early, zero after milestone
Works well when
- →Done saving by 40 — psychologically liberating
- →Compounding alone carries you to full retirement
- →Frees cash at 40 for passion projects
Watch out for
- ·Requires ₹50K+ SIP in your 20s–30s
- ·One crash before 40 can derail the plan
- ·Corpus must sit untouched for 10+ years
Best for: High earners (₹50L+) who want partial freedom early and can maintain long-term discipline.
Barista FIRE
Typical corpus
₹2–2.5 crore (growing untouched)
Monthly expenses
₹25,000–30,000 covered by part-time work
Target corpus
₹2–2.5 crore (growing untouched)
SIP approach
Stop SIP. Let portfolio compound.
Works well when
- →Step away from corporate at 40
- →Portfolio grows ₹2.5Cr → ₹5.6Cr untouched over 10 yrs
- →Better mental health — meaningful part-time vs grind
Watch out for
- ·Still working — not full independence
- ·Needs sustainable part-time income stream
- ·Healthcare and benefits unclear outside corporate
Best for: People who enjoy work but want lifestyle change, parents of young kids, freelancers.
Quick Selector
Tax-Efficient Retirement Withdrawals: How to Keep 20% More of Your FIRE Corpus
Your FIRE calculator shows gross withdrawal — not after-tax. Most people ignore this and discover the problem in year 3 of retirement when the tax bill arrives. Add 10% to your corpus target for taxes, then use these strategies to bring it back down.
Unoptimized withdrawal
Optimized withdrawal
Strategy 1 — The Withdrawal Bucket System
Divide corpus into 3 buckets. Bucket 1 (₹1 crore): dividend stocks + PPF maturity — tax-free or low-tax withdrawals for years 1–5. Bucket 2 (₹1.5 crore): ELSS + index funds held 5+ years — LTCG rates. Bucket 3 (₹2.5 crore): debt funds + FDs — emergency buffer. Withdraw from Bucket 1 first. Let 2 and 3 compound.
Strategy 2 — LTCG Tax Harvesting (₹1.25L Exemption)
The first ₹1.25 lakh of long-term equity capital gains is completely tax-free each financial year. Strategically redeem and reinvest annually to realise gains within this limit. Over 20 years of retirement, this saves ₹25,000+ per year — ₹5+ lakh total.
Strategy 3 — PPF + SCSS for Tax-Free Base Income
PPF maturity is 100% tax-free. Senior Citizens Savings Scheme (SCSS) at 8.2% is government-backed, accessible from age 55 if voluntarily retired. Post Office MIS gives ₹3,750/month on ₹5 lakh invested. These create a predictable income floor, reducing how much equity you need to sell in bear markets.
Key Takeaway
- · Add 10% to your FIRE corpus target to account for tax drag
- · Split withdrawals across dividend income, LTCG, and tax-free instruments
- · Time large redemptions around low-income years
- · The difference between ₹5 crore and ₹5.5 crore is just tax planning — not more SIP
Frequently asked questions
FIRE planning in the Indian context — answered clearly.
Ready to build a personalised plan?
Your FIRE number is the target. Aurelian Capital builds the road — portfolio allocation, Monte Carlo goal probability, and a monthly plan customised to your risk profile.