Retirement calculators
Free calculators for the numbers behind early retirement. Each one runs in your browser and saves nothing.
FIRE number calculator: what you need to retire
Your FIRE number from monthly spending, adjusted for how early you retire, and the age your savings reach it.
Coast FIRE calculator
Find your coast number: the balance that grows to financial independence by your target age with no more contributions.
Barista FIRE calculator
When could you go part-time? A two-phase projection showing what working less costs, in years of full retirement.
Fat FIRE calculator: lean, chubby and fat FIRE
Lean, as-is, chubby and fat FIRE side by side: four spending targets from the same savings, and the age each is reached.
Geographic arbitrage calculator
What a cheaper place does to your retirement date: a lower target and higher savings at once, at 10% to 40% lower costs.
Curious about the math? How Reign calculates your numbers shows the formulas.