FIRE Number Calculator: Find Your Financial Independence Number for 2026
Calculate your FIRE number and estimate when you can retire early based on savings rate, expenses, and investment returns.
How Your FIRE Number Is Calculated
The FIRE number is based on the safe withdrawal rate from the Trinity Study, which found that a 4% annual withdrawal sustains a portfolio for 30+ years.
The default 4% withdrawal rate assumes a 30-year retirement horizon. For earlier retirements (40+ years), consider using 3.5% or 3.25%. Inflation, taxes, and market volatility may affect actual results.
How to Use the FIRE Number Calculator
Enter your annual income
Use your gross annual income before taxes to establish your savings capacity.
Set your annual expenses
Include all yearly spending: housing, food, transport, insurance, and discretionary. This drives your FIRE number.
Enter current savings
Include all invested assets: 401(k), IRA, brokerage accounts, and other retirement savings.
Adjust return and withdrawal rates
The default 7% return and 4% withdrawal rate are historically supported, but adjust for your risk tolerance.
Review your FIRE number and timeline
See your target portfolio, years to FIRE, and monthly savings needed.
Real-World Scenario Example
"A 30-year-old earning $80,000/year with $50,000 saved, spending $40,000/year, targeting a 4% withdrawal rate."
Inputs
Result
FIRE number of $1,000,000. With $40,000 annual savings and 7% returns, financial independence is reached in approximately 13 years.
Important Disclaimer
This calculator provides estimates based on historical averages and the 4% rule. Actual investment returns, inflation, taxes, and life circumstances will vary. Consult a financial advisor before making retirement decisions.
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Project your 401(k) balance at retirement based on your salary, contribution rate, employer match, and expected investment return.
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Calculate your net worth by adding up your assets and subtracting your liabilities, with a visual breakdown of what you own versus what you owe.
Sources & References
NerdWallet — FIRE Number Calculator
https://www.nerdwallet.com/retirement/calculators/fire-number-calculator
Wealthvieu — FIRE Guide 2026: Numbers, Strategies & Calculators
https://wealthvieu.com/retirement/fire/
Money Under 30 — FIRE Calculator: Find Your FIRE Age & Number
https://www.moneyunder30.com/fire-calculator/