MTMasterTool

FIRE Early Retirement Calculator

Calculate fire early retirement from your own entered figures.

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Currency: Amounts are calculated in the currency you select; this site does not convert between currencies and does not use live exchange rates.

What this tool does

Calculate fire early retirement from your own entered figures. Constant assumed return, no live market prices, taxes, inflation or investment fees unless included in your inputs. Savings rate is applied to after-tax income; ensure it is consistent with entered expenses.

How to use the FIRE Early Retirement Calculator

  1. Enter or select annual after-tax income.
  2. Enter or select annual expenses.
  3. Enter or select savings rate (%).
  4. Enter or select current portfolio.
  5. Enter or select annual real return (%).
  6. Enter or select safe withdrawal rate (%).
  7. Enter or select starting calendar year.
  8. Read the calculated result; change any measurement to compare alternatives.

Formula

FI target=annual expenses/(withdrawal rate/100); annual contribution=income×savings rate/100; simulate year-end compounding until target
income
Annual after-tax income
expenses
Annual expenses
rate
Savings rate (%)
balance
Current portfolio
return
Annual real return (%)
swr
Safe withdrawal rate (%)
year
Starting calendar year

Constant assumed return, no live market prices, taxes, inflation or investment fees unless included in your inputs. Savings rate is applied to after-tax income; ensure it is consistent with entered expenses.

Worked example

For fire early retirement calculator, the following measurements illustrate the exact method: Annual after-tax income: 80000; Annual expenses: 40000; Savings rate (%): 50; Current portfolio: 100000; Annual real return (%): 5; Safe withdrawal rate (%): 4; Starting calendar year: 2026.

Inputs

  • Annual after-tax income80000
  • Annual expenses40000
  • Savings rate (%)50
  • Current portfolio100000
  • Annual real return (%)5
  • Safe withdrawal rate (%)4
  • Starting calendar year2026

Result

  • Financial independence number$1,000,000.00
  • Estimated years to target15
  • Estimated target year2,041
  • Annual savings$40,000.00

Results explained

Financial independence number
Financial independence number from the formula above. Constant assumed return, no live market prices, taxes, inflation or investment fees unless included in your inputs. Savings rate is applied to after-tax income; ensure it is consistent with entered expenses.
Estimated years to target
Estimated years to target from the formula above. Constant assumed return, no live market prices, taxes, inflation or investment fees unless included in your inputs. Savings rate is applied to after-tax income; ensure it is consistent with entered expenses.
Estimated target year
Estimated target year from the formula above. Constant assumed return, no live market prices, taxes, inflation or investment fees unless included in your inputs. Savings rate is applied to after-tax income; ensure it is consistent with entered expenses.
Annual savings
Annual savings from the formula above. Constant assumed return, no live market prices, taxes, inflation or investment fees unless included in your inputs. Savings rate is applied to after-tax income; ensure it is consistent with entered expenses.

Frequently asked questions

FI target=annual expenses/(withdrawal rate/100); annual contribution=income×savings rate/100; simulate year-end compounding until target

Constant assumed return, no live market prices, taxes, inflation or investment fees unless included in your inputs. Savings rate is applied to after-tax income; ensure it is consistent with entered expenses.

No. All numbers are entered by you or come from the dated reference table shown on this page; calculations run locally.

This is an estimate, not financial, tax or legal advice. Verify the inputs and output with official sources and a qualified professional.

Check period consistency, currency, percentage inputs and the assumptions: Constant assumed return, no live market prices, taxes, inflation or investment fees unless included in your inputs. Savings rate is applied to after-tax income; ensure it is consistent with entered expenses.