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Both calculators run independently — change the inputs on either side to compare results.

FIRE Early Retirement Calculator

Calculates how many years until you reach financial independence and can retire early using the FIRE framework. Use it to test the impact of your annual savings, spending level, and chosen FIRE target on your timeline.

Current Net Worth ($)

Annual Savings ($)

Annual Expenses ($)

Expected Investment Return (%)

FIRE Target Type

Fill in the required fields to see your result.

Retirement

4% Rule Retirement Withdrawal Calculator

Estimate how much you can safely withdraw from your retirement portfolio each year. Use this when planning annual retirement income to avoid outliving your savings.

Total Portfolio Value ($)

Withdrawal Rate (%)

Tax Rate on Withdrawals (%)

Fill in the required fields to see your result.

Key differences

	FIRE Early Retirement Calculator	4% Rule Retirement Withdrawal Calculator
Category	Retirement	Retirement
Inputs required	5	3
Result	Years to Financial Independence (years)	Safe Annual Withdrawal (After Tax) ($)
What it does	Calculates how many years until you reach financial independence and can retire early using the FIRE framework. Use it to test the impact of your annual savings, spending level, and chosen FIRE target on your timeline.	Estimate how much you can safely withdraw from your retirement portfolio each year. Use this when planning annual retirement income to avoid outliving your savings.