--- title: "FIRE Calculator India: Retire Early Number | RupeeCase" description: "FIRE calculator for India: your FIRE number at 25 times yearly expenses, and your savings at your return, the Nifty 50 TRI figure and an FD assumption." source_url: "https://www.rupeecase.com/learn/tools/fire-calculator" --- FIRE number (25 x yearly expenses)**₹4.04 Cr**expenses at 45, after inflation Your return**₹1.89 Cr**47% of the target, ₹62,961 a month at 4% Dynamic Asset Allocator, 45.18% (model, back tested CAGR as of 27 Apr 2026)**₹73.00 Cr**1,807% of the target, ₹24,33,205 a month at 4% Nifty 50 TRI, 9.8% (as of 27 Apr 2026)**₹1.49 Cr**37% of the target, ₹49,726 a month at 4% FD, 7.0% (assumption)**₹1.11 Cr**28% of the target, ₹37,082 a month at 4% * Your return * Dynamic Asset Allocator * Nifty 50 TRI * FD * FIRE number Past or back tested returns are not a promise of future returns. Share this resultReset 01How it works ## In plain words. Expenses grow with inflation to the target age; 25 times that year’s expenses is the FIRE number (the 4% rule turned around). Your savings and monthly investment are then projected at three returns: one you choose, the Nifty 50 TRI figure on this page with its date, and a fixed deposit rate you set as an assumption. The formula `FIRE number = expenses x 12 x (1 + inflation)^years x 25``Projection = savings x (1 + i)^n + SIP x ((1 + i)^n - 1) / i``Income at 4% = projection x 4% / 12` 02Worked example ## The default numbers, by hand. Age 28 to 45, Rs 50,000 a month today, 6% inflation: the FIRE number is about Rs 4.04 crore. Rs 25,000 a month plus Rs 5 lakh at 12% reaches about Rs 1.89 crore, 47% of it. | Input | Value | | --- | --- | | Monthly investment | ₹25,000 | | Age now | 28 | | Target age | 45 | | Savings so far | ₹5,00,000 | | Monthly expenses today | ₹50,000 | | Inflation a year | 6% | | Your return a year | 12% | | Fixed deposit rate (assumption) | 7% | | Result | Value | | --- | --- | | FIRE number (25 x yearly expenses) | ₹4.04 Cr | | Your return | ₹1.89 Cr | | Dynamic Asset Allocator, 45.18% (model, back tested CAGR as of 27 Apr 2026) | ₹73.00 Cr | | Nifty 50 TRI, 9.8% (as of 27 Apr 2026) | ₹1.49 Cr | | FD, 7.0% (assumption) | ₹1.11 Cr | 03Key concepts ## What to know before you use it. ### The 25x rule 25 times yearly expenses is the 4% withdrawal rule turned around. It comes from US research on 30 year retirements; an early retirement can last 40 or 50 years, which the same research suggests needs a lower withdrawal rate. ### Lean and fat FIRE Lean FIRE plans for basic expenses only; fat FIRE for a fuller lifestyle. The expenses input is the lever. ### Good to know * Healthcare and insurance are worth planning separately for an early retirement. * Rent or other income after FIRE reduces the expenses the portfolio has to fund. 04Assumptions ## What the calculator assumes. * Constant returns and inflation; the investment stays flat each month. * The Nifty 50 TRI figure is the model window’s benchmark CAGR from lineup.json; the FD rate is an assumption you set. * Past or back tested returns are not a promise of future returns. Sources, checked 12 Oct 2026 1. [William Bengen, Determining Withdrawal Rates Using Historical Data, Journal of Financial Planning, October 1994](https://www.financialplanningassociation.org/sites/default/files/2021-04/MAR04%20Determining%20Withdrawal%20Rates%20Using%20Historical%20Data.pdf) 2. [William Bengen, Determining Withdrawal Rates Using Historical Data, Journal of Financial Planning, October 1994](https://www.financialplanningassociation.org/sites/default/files/2021-04/MAR04%20Determining%20Withdrawal%20Rates%20Using%20Historical%20Data.pdf) 05Questions ## Asked about the FIRE calculator. What is a FIRE number?The corpus that would fund your yearly expenses indefinitely under the 4% rule: 25 times those expenses at the time you stop working. Does the 4% rule work for early retirement?The research behind it covered 30 year periods in US markets. Longer retirements have historically needed lower withdrawal rates. Explore next ## Learn the idea behind the numbers. * [Blog noteMidcap: the 41 percent and the 322 daysStrategy notes, a short note](/blog/2026-07-20-evening-midcap-drawdown/) * [Blog noteThe clause that shrinks your health coverPersonal finance and tax, a short note](/blog/2026-07-15-morning-room-rent-cap/) * [Free module 4.5Risk Management for Systematic Portfolios9 min read](/learn/path-4/module-4-5-risk-management) * [Free module 7.3Inflation, Types, Measurement, and Investment Impact10 min read](/learn/path-7/module-7-3-inflation-types-measurement-investment-impact) * [StrategyLarge Mid Multi Asset strategyNifty LargeMidCap 250, 42 stocks, every 2 weeks](/strategies/largemid-multi-asset) * [Free module 8.6Building Systems That Protect You From Yourself9 min read](/learn/path-8/module-8-6-building-systems-that-protect-you-from-yourself) Community ## Join my WhatsApp group. Scan the code, fillFill one short form, and join my WhatsApp group. Slides, sources, factsheets and the rebalance logs live there, and members join a daily Google Meet with me. [Sign up for RupeeCase](https://invest.rupeecase.com/signup) [Join the WhatsApp group](https://forms.gle/C6HMtM1Z2GfeocQV7) [One form, one group](https://forms.gle/C6HMtM1Z2GfeocQV7)Scan with your phone camera 06Keep going ## Learn the idea, see it applied. [Module 4.5Risk Management for Systematic Portfolios9 min read, Path 04](/learn/path-4/module-4-5-risk-management)[Module 7.3Inflation: Types, Measurement, and Investment Impact10 min read, Path 07](/learn/path-7/module-7-3-inflation-types-measurement-investment-impact)[Module 8.6Building Systems That Protect You From Yourself9 min read, Path 08](/learn/path-8/module-8-6-building-systems-that-protect-you-from-yourself)[The matching indexLarge Mid Multi Asset40 equity stocks plus LiquidCase and GoldBees. 80/10/10 multi-asset on the LargeMidCap 250.CAGR34.3%Sharpe1.72Max DD−17.6%Model, back tested, as of 27 Apr 2026. Not client returns, not a promise. Risk band: Moderate.](/strategies/largemid-multi-asset) More goal planning calculators [Goal planner](/learn/tools/goal-planner)[Retirement planner](/learn/tools/retirement-calculator)[Emergency fund](/learn/tools/emergency-fund-calculator)[All 25 calculators](/learn/tools) Education only, not investment advice. RupeeCase is a technology platform operated by QC Alpha Technologies Pvt Ltd; it is not a fund, a PMS or a SEBI registered investment adviser. Model returns are back tested and not a promise of future returns. Figures carry the date they were checked.