FIRE Calculator (Financial Independence / Retire Early)

LeanRegularFatCoast

Your Lean/Regular/Fat FIRE numbers, your Coast FIRE number (what you'd need today to coast to financial independence on growth alone, no more contributions), and roughly how many years out each one is at your current savings rate. All client-side — nothing here is sent anywhere.

Current Age

Target Retirement Age

Current Invested Assets

Annual Contribution

Expected Annual Return %

Current Annual Expenses

Advanced: withdrawal rate & lean/fat multipliers

Withdrawal Rate % ?

Lean Spending (% of current)

Fat Spending (% of current)

Defaults are just an illustrative example — plug in your own numbers. Nothing is saved or sent anywhere; refresh and it's gone, exactly like the retirement planner.