FIRE calculator

Explore the capital and time your spending target requires.

All amounts are in today’s money. Contributions are assumed to rise with inflation. Include taxes and other recurring costs in retirement spending.
Target invested capital—

Sensitivity to real returns
ScenarioReal returnYears to target
Year-by-year projection
YearInvested capitalTarget

How the target works

Target = annual spending ÷ withdrawal rate. At 4%, the target is 25 times annual spending. Growth uses a constant real return and month-end contributions. The scenarios change the return by two percentage points.

This estimates reaching a capital target, not the probability of funding retirement. It does not simulate withdrawals, market sequences, pensions or changing household needs.