Built for real work
Coast number and timeline.
Coast FIRE Calculator — Coast Financial Independence
Calculate your Coast FIRE number and years until compound growth can fund retirement without new savings.
Formula used
Coast FIRE = Annual spending ÷ SWR% Years = log target / log(1 + return) with no new contributions
Examples
Try a sample calculation
$50k spend, $200k saved
Sample plan
Fast and focused
Adjustable SWR and returns.
Main features of Coast Fire Calculator:
Enter the required fields—dates, amounts, percentages, or measurements as labeled.
Double-check units (currency, tax rate, height/weight) match your scenario.
Run the calculation and read the breakdown, not just the headline number.
Adjust inputs to compare scenarios, or open a related Rankify calculator for the next step.