CalcOS

FIRE Calculator

Live
Parameters
Presets
Your total projected annual living expenses.
$40,000.00
$1,000.00$1,000,000.00
$
Expected annual growth rate of your investment portfolio before retirement.
7.5%
0.0%25.0%
%
Safe Withdrawal Rate (SWR) for Financial Independence, Retire Early (FIRE).
4.0%
2.0%8.0%
%

Advanced Insights (Optional)

Improve the accuracy of your personalized financial diagnostics.

Your current annual gross salary.
$0.00
$0.00$10,000,000.00
$
Standard target age for retirement planning, typically 65 to 67.
65
5085
Live Projection Summary
Years until FIRE
32 yrs
FIRE Retirement Age
Age 62
Target Nest Egg Portfolio
$1,000,000
10-Year Portfolio
$270,800
20-Year Portfolio
$553,444
Analytics Dashboard
Time to Achieve FIRE
32 years
Critical
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FIRE Target Capital Needed$1,000,000
Lean FIRE Target$750,000
Fat FIRE Target$1,500,000
InterpretationCritical SWR Withdrawal Rate: extreme probability of portfolio exhaustion before timeline completes.
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How to Use the FIRE Calculator

Financial Independence, Retire Early (FIRE) requires a clear savings target and compounding strategy. This calculator helps you solve for your years to FIRE or required savings, and maps out your progress toward different FIRE milestones (Lean, Fat, Coast, Barista).

Input variables:
  • Solve For: Bounded parameter in the mathematical model.
  • Current Age: Bounded parameter in the mathematical model.
  • Current Savings & Investments ($): Bounded parameter in the mathematical model.
  • Monthly Contributions ($): Bounded parameter in the mathematical model.
  • Expected Annual Expenses ($/year): Bounded parameter in the mathematical model.
  • Annual Portfolio Return (%): Bounded parameter in the mathematical model.
  • Safe Withdrawal Rate (%): Bounded parameter in the mathematical model.
  • Tax Drag on Investment Growth (%): Bounded parameter in the mathematical model.
  • Adjust for Inflation: Bounded parameter in the mathematical model.
  • Expected Inflation Rate (%): Bounded parameter in the mathematical model.
  • Target Timeline (Years): Bounded parameter in the mathematical model.
  • Annual Gross Salary ($): Bounded parameter in the mathematical model.
  • Risk Profile: Bounded parameter in the mathematical model.
  • Traditional Retirement Age: Bounded parameter in the mathematical model.
  • Expected FIRE Lifestyle: Bounded parameter in the mathematical model.

FIRE Savings & Nest Egg Planning: Formula & Worked Example

Explore the mathematics of Financial Independence, Retire Early (FIRE), safe withdrawal rates, and early retirement timelines.

Read Full Guide →