Coast FIRE Calculator
Coast FIRE Calculator finds your exact Coast FIRE number instantly.
At a glance
Starts at
$40 per year
Price as published by the vendor, September 2026.
Free tier
Yes
Platforms
Web
Best for
Retirees, young savers
4.0 out of 5
Scored by a Toolio reviewer after real useOur verdict
It calculates when you can stop saving for retirement. Best suited for those looking to retire early but might not be ideal if inflation rates are higher than expected.
✓What it does well
Instant updatesResults refresh instantly as you enter data.
Interactive growth chartView your portfolio's projected growth over time.
Simplified calculationsNo need to adjust for inflation yourself; the tool handles it.
✕Where it falls short
Doesn't handle real returnsCalculates based on nominal investment return only.
Limited assumptionsOnly allows common planning assumptions like a 7% nominal return, which might not be accurate for all users.
No long-term projections beyond retirement ageDoesn't project outcomes after reaching the Coast FIRE number.
Key features
Safe withdrawal rateUses a classic '4% rule' for calculations.
Custom inputsAllows input of current invested assets, monthly contributions, and more.
Age rangesWorks well with age ranges from young savers to near-retirees.
Long-term projectionsProjects outcomes beyond retirement age