Financial Independence Calculator

Financial independence means having enough invested assets to cover living expenses indefinitely without working. The 25x rule suggests accumulating 25x annual expenses, then withdrawing 4%/year

The calculator uses the standard published formula for financial independence. Results are accurate to the precision of the inputs you provide. For financial, medical, or legal decisions, always verify with a qualified professional.

This calculator works with inches, percentages. You can enter values in the units shown — the calculator handles all conversions internally.

The core formula is: FI number = Annual expenses x 25 (at 4% withdrawal rate). Each step in the calculation is shown so you can verify the result manually.