About AWGtomm2
AWGtomm2 is a free, browser-based toolkit built for electrical engineers, installers, engineering students, and anyone who regularly works with wire sizes, cable layouts, power-system analysis, and AC circuit calculations.
Every calculator runs entirely in your browser. Your data never leaves your device — no accounts, no uploads, no tracking cookies. We use only minimal analytics for error monitoring.
The core AWG ↔ mm² converter is joined by practical engineering calculators, with more electrical and power-system 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.