About AWGtomm2
AWGtomm2 is a free, browser-first toolkit for electrical engineers, installers, engineering students and anyone working daily with wire sizes, cable layouts, power system analysis and AC circuit math.
All calculators run on the client. Your inputs never leave your device — there is no account, no upload, no tracking cookies. We use strictly minimal analytics for error monitoring.
The flagship conversion AWG ↔ mm² is paired with five engineering calculators in the MVP, and we are expanding the catalogue with additional electrical, power system and industrial protocol tools.
Fast and offline-friendly
Everything is computed locally, in your browser, in milliseconds.
Rigorous formulas
We use standard resistance-temperature corrections, Fortescue transforms and classical drop equations.
Multilingual
English, French, German, Spanish and Portuguese. More languages in upcoming releases.
Standards-aware
We highlight where NEC / IEC / national codes matter and encourage cross-checks.