About Name Compatibility

Name Compatibility is a free name compatibility calculator. It runs in your browser: open the page, enter your figures and get the answer straight away, with the working shown.

How we test the calculations

Before an update is published, the tool runs through 102 automated checks in a real browser: worked examples are recalculated, edge cases and wrong input are tried, and the layout is checked on desktop and on a phone.

What the explanations rely on

The formulas and reference values in the guides follow published standards and primary sources, linked where they are used: en.wikipedia.org.

How we write

Pages are written and maintained by the site's editorial team. We aim to answer the question people actually ask, show worked examples with real numbers, and say plainly where a calculator cannot replace professional advice. Nothing on this site is sponsored content.

Keeping it current

Published October 8, 2026, last reviewed October 12, 2026. Corrections are welcome via the contact page; confirmed fixes go out with the next update.

Advertising

The tool is free to use. The site is funded by advertising, which never influences results or explanations.

— Name Compatibility editorial team