FIRE Calculator

Estimate your FIRE number, future portfolio value, years remaining, and retirement readiness using the 4% safe-withdrawal rule.

Formula

FIRE Number = Annual Expenses × 25 FV = Savings × (1+r)^t + Contributions × [((1+r)^t − 1) ÷ r] where t = Retirement Age − Current Age, r = expected annual return

How it works

A FIRE (Financial Independence, Retire Early) calculator estimates the portfolio you need to retire and projects your portfolio at retirement age.

Example

Example: Age 30 → 50 (20 years), $50k savings, $40k expenses, 7% return, $20k/year: FIRE number = $1,000,000. Future value ≈ $1,013,888 — on track.

Frequently Asked Questions

Disclaimer: Results are estimates for informational purposes only and should not be considered financial, medical, legal, or professional advice. Always consult a qualified professional before making decisions.