Early Retirement
FIRE Calculator
Calculate your FIRE number — the corpus needed so investment returns cover your living expenses indefinitely.
25x = 4% rule; 33x = 3% rule
Your FIRE Number
Annual Expenses
Real Return (After Inflation)
Required Gap
Estimated Time to FIRE
Corpus Growth to FIRE Number
Want personalised advice on this?
Ask FinChat — our AI advisor will analyse your FIRE results in the context of your full financial picture.
Uses real return (return minus inflation) for projection. The 4% withdrawal rule (25x) assumes a 30-year retirement. Adjust the multiple for longer timelines. Results are indicative only.
What is a FIRE Calculator?
A FIRE (Financial Independence, Retire Early) calculator helps you determine your "FIRE number" — the total investment corpus you need to accumulate before you can live off investment returns indefinitely, without needing to work. The most popular method is the 4% rule: your corpus should be 25× your annual expenses, so that a 4% annual withdrawal sustains you forever (based on historical market data).
The calculator combines your current corpus, annual investments, expected return, and inflation to estimate how many years it will take to reach your FIRE number. It also accounts for real returns (return minus inflation) — because you need your corpus to grow not just in absolute terms, but in real purchasing power terms after accounting for rising prices.
How to Use This FIRE Calculator
- 1
Enter your monthly expenses
Use your current monthly spending. In FIRE planning, expenses define your freedom — the less you need, the smaller the corpus required. Your FIRE number = Annual Expenses × FIRE Multiple.
- 2
Set your current investable corpus
Include all liquid investment assets: mutual funds, stocks, NPS (accessible portion), PPF maturity value. Exclude home, EPF (if locked-in), and illiquid assets.
- 3
Set annual investment and return
Annual investment is what you contribute to investments each year. Expected return: 10–12% for equity-heavy portfolios. Inflation: 6% for India. Real return = return − inflation ≈ 4–6%.
- 4
Choose your FIRE multiple
25x = 4% withdrawal rate (30-year retirement). 33x = 3% rule (safer for longer retirements). For India, 30x is a good middle ground given higher inflation and longer potential retirement periods.
Types of FIRE
| FIRE Type | Monthly Expenses | FIRE Number (25x) | Profile |
|---|---|---|---|
| Lean FIRE | ₹25,000–₹40,000 | ₹75L–₹1.2 Cr | Minimalist lifestyle, low expenses |
| Regular FIRE | ₹50,000–₹80,000 | ₹1.5–₹2.4 Cr | Comfortable middle-class lifestyle |
| Fat FIRE | ₹1.5L–₹2L+ | ₹4.5–₹6 Cr+ | Luxurious lifestyle, no compromises |
| Barista FIRE | ₹60,000–₹80,000 | Partial corpus + part-time income | Semi-retired, some part-time work |
Worked Example: FIRE at 40 in India
Meet Priya, a 28-year-old software engineer in Bangalore earning ₹18 LPA. Her monthly expenses are ₹50,000 (₹6L per year). She already has ₹12L in mutual funds and saves ₹5L per year.
| Monthly expenses | ₹50,000 |
| Annual expenses | ₹6,00,000 |
| FIRE multiple (25x) | ₹1.5 Cr |
| Current corpus | ₹12,00,000 |
| Annual investment | ₹5,00,000 |
| Expected return / Inflation | 12% / 6% (real return ≈ 5.66%) |
| Estimated time to FIRE | ~16 years (age 44) |
At a 5.66% real return (12% nominal less 6% inflation, compounded), Priya's ₹12L corpus plus ₹5L yearly contributions grow to approximately ₹1.5 Cr in today's purchasing power in about 16 years — landing her at age 44. If she bumps her annual savings to ₹6L, she reaches FIRE in 15 years (one year sooner) — showing how every additional ₹1L of savings meaningfully shortens the timeline.
Is the 4% Rule Valid in India?
The 4% rule originates from the 1998 Trinity Study, which tested US stock and bond portfolios over 30-year periods. It found that withdrawing 4% of your initial corpus (adjusted for inflation each year) had a 95% chance of lasting 30 years. But India is different in several ways:
Higher Inflation
India's long-term CPI inflation averages 6–7%, compared to 2–3% in the US. This means your corpus erodes faster in real terms. A 3–3.5% withdrawal rate (28–33x multiple) is safer for Indian retirees planning 40+ year retirements.
Higher Equity Returns
Indian equities (Nifty 50) have delivered 12–14% CAGR over 20-year periods, higher than US markets. The real return after inflation (6–7%) is comparable to the US at 7–8%, partially offsetting the higher inflation.
Healthcare Costs
Medical inflation in India runs at 10–14% annually — far above general CPI. Without employer health insurance post-retirement, a major illness can wipe out years of withdrawals. Budget separately for a health cover of at least ₹25–50L.
No Social Safety Net
Unlike the US (Social Security) or UK (State Pension), India has no universal pension for private-sector workers. Your FIRE corpus is truly all you have. This makes a conservative withdrawal rate (3–3.5%) more prudent.
Common FIRE Mistakes to Avoid
Ignoring inflation in expense projections
Your expenses at age 40 won't be the same as today. At 6% inflation, ₹50,000/month today becomes ₹89,500/month in 10 years. Always project your FIRE number using inflated future expenses — this calculator does this automatically via the real return.
Not accounting for lifestyle inflation
As your income grows, expenses tend to creep up — better car, bigger house, private school for kids. If your spending grows from ₹50K to ₹80K/month, your FIRE number jumps from ₹1.5 Cr to ₹2.4 Cr. Track your actual expenses regularly and re-run this calculation.
Counting your home as part of FIRE corpus
Your primary residence generates no income (unless you rent it and move). Only count liquid, income-producing assets — mutual funds, stocks, NPS, PPF maturity, rental properties. Your house keeps a roof over your head but doesn't fund your withdrawals.
Retiring without adequate health insurance
A single hospitalisation can cost ₹5–15L in a metro city. If you FIRE at 40, you have 20+ years before most people's employer coverage would have ended anyway. Buy a comprehensive health policy (₹25–50L cover) while young and healthy — premiums are much lower.
Using overly optimistic return assumptions
Assuming 15%+ returns forever is dangerous. Markets have extended flat periods — the Nifty 50 delivered near-zero returns from 2008 to 2013. Use 10–12% for equity-heavy portfolios and 7–8% for balanced ones. Conservative estimates give you a buffer.
Track your FIRE progress in your dashboard
Save your calculation, set a target, and get a personalised plan — all free.
Add to My Financial Plan — FreeRelated Articles
Deep-dive guides to help you make better financial decisions.
4% Rule & FIRE Movement for Indian Investors (2025)
The FIRE movement — Financial Independence, Retire Early — is gaining traction in India. But the popular 4% rule was de…
Read article →Retirement Planning in Your 30s: Complete India Blueprint
Your 30s are the most critical decade for retirement planning. You have enough income to save meaningfully, enough time…
Read article →SIP to Become a Crorepati: Monthly Amount Calculator
Becoming a crorepati sounds out of reach, but with disciplined SIP investing and the power of compounding, it is more a…
Read article →FAQs