Calculator
FIRE Number Calculator
Estimate a financial independence target from annual expenses and an assumed withdrawal rate.
Result
Estimated FIRE number
$1,500,000.00
Annual expenses
$60,000.00
How to use this calculator
What this calculator does
Estimate a financial independence target from annual expenses and an assumed withdrawal rate.
How to use it
Enter your annual expenses and withdrawal rate, then review the result, formula, example, and FAQs below. Try a few scenarios to see which inputs move the result most.
What the result means
Use the result as a direct calculation from the values you entered. If it looks off, check the inputs and formula shown on this page.
Browse more retirement calculators for related estimates and comparisons.
Retirement results are estimates for planning and education. They are not financial advice and do not account for every market, tax, fee, inflation, pension, health, benefit-timing, or personal factor.
Scenario guidance
When to use this
Use this when estimating a rough financial independence target from annual spending and a withdrawal-rate assumption.
Example scenario
A household is comparing current annual expenses with a leaner retirement budget to see how the target number changes.
Inputs that usually matter most
- Annual expenses, because spending drives the target.
- Withdrawal rate, because a lower rate requires a larger portfolio target.
Common mistake to avoid
Do not assume one withdrawal rate fits every retirement timeline, tax situation, investment mix, or market environment.
How to interpret the result
Use the FIRE number as a simple target estimate, then stress-test it for inflation, taxes, health costs, fees, and changing expenses.
Results are estimates for planning and education. They are not financial advice.
Formula
The withdrawal rate is converted from a percentage to a decimal before dividing annual expenses.
Example FIRE number
$60,000 in annual expenses and a 4% withdrawal rate gives an estimated FIRE number of $1,500,000.
Frequently Asked Questions
Is the 4% rule guaranteed?
No. A withdrawal-rate assumption is only a planning input. Actual outcomes depend on returns, inflation, taxes, fees, spending, and time horizon.
Should I use current expenses or future expenses?
Use the annual expenses you expect in retirement or financial independence, then test several spending scenarios.
Related Calculators
Retirement Withdrawal Calculator
Estimate how long retirement savings may last based on annual withdrawals and expected annual return.
Retirement Income Gap Calculator
Estimate the annual and monthly gap between desired retirement income and expected income sources.
Retirement Contribution Calculator
Estimate the monthly contribution needed to work toward a target retirement savings amount.