About figured.fyi

Every calculation, explained.

figured.fyi is a library of free calculators, converters, and decision tools. Each one gives you the answer first, then explains what it means and what to do next — because a number without context is just a number.

Why trust these results?

Every tool here is built from a structured specification: the formula, its source, worked examples, and test cases are defined before a single page is published. Automated checks verify the math against those test cases, flag any unsourced number, and block publication until everything passes. Parts of the creation process are automated, but publication is gated by specifications, testing, and review rather than generation alone. Higher-stakes topics such as money, health, and tax receive additional scrutiny and carry visible disclaimers.

No tool is copied from another site. Where a tool uses reference data — currency rates, standard constants — the source and its date are named at the bottom of the page.

Who makes this?

figured.fyi is an independent one-person project, built and maintained daily. There's no content team, no outsourced writing, and nothing published that hasn't passed the checks above.

What figured.fyi is not

It's not advice. Results are informational — a starting point for a decision, not the decision itself. For anything involving your money, health, or legal situation, treat the answer as a well-lit map, and take the actual journey with a professional.

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