Useful, adjustable estimates
The calculator makes its inputs visible so you can compare your own spending, timeline, return, inflation, and withdrawal-rate assumptions.
About FireCalcTools
Clear Coast FIRE planning tools, built for thoughtful decisions.
FireCalcTools offers free calculators and explainers to help people understand Coast FIRE assumptions without treating a projection as a promise.
Why this site exists
Retirement planning terms can make simple questions feel opaque: what could current investments grow into, how does inflation change the picture, and what tradeoffs come with a different timeline?
The goal is to make the calculation transparent enough to explore and easy enough to revisit. It is not to tell anyone when to retire, reduce work, or change contributions.
Read the financial disclaimerPrivacy-first by design
Calculator inputs are processed in the browser for the current session. They are not stored in a database, placed in the URL, or shared by the tool.
Education with clear limits
Guides explain concepts and model assumptions in plain language. They are not personalized financial, investment, tax, or legal advice.
Ready to estimate your Coast FIRE number?
Enter your age, savings, and retirement assumptions to explore a private retirement scenario in seconds.