UK FIRE Calculator

Plan and chart a UK Financial Independence / Retire Early scenario — save a few named configurations, everything stays in your browser.

This page is an interactive tool that runs entirely in your browser, so it needs JavaScript enabled to do anything. Nothing you enter is ever sent to a server.

⚠️ Educational purposes only. This is a simplified illustration, not financial advice. It assumes constant returns, ignores tax, market volatility, fees changes and life events, and doesn't model ISA or pension rules — real outcomes will differ. Speak to a regulated financial adviser before making decisions.

🔒 Everything here stays in your browser's local storage — nothing is uploaded or sent to a server.

Dashed vertical markers show the UK pension access age (57) and State Pension age (67) for reference — this tool doesn't model pension or ISA tax rules.