Editorial Policy

Original, verified content

Every explanation, example and FAQ on this site is written for that specific tool, with numbers we recompute by hand before publishing. Nothing is templated across tools with a term swapped.

Formulas first

A calculator ships only when its formula is shown on the page and reproduced in the methodology index. If the two ever disagree, that is a bug and we want to hear about it.

Updates and corrections

Formula changes, default changes and corrections are logged on the updates page with dates. Silent edits to math are not something we do.

No pay-to-rank

No project, exchange or token can pay to appear in a calculator's defaults, examples or recommendations.