Map AWG number to conductor diameter in millimeters.
Formula
d_mm = 0.127 × 92^((36 − AWG) / 39)
Explanation
AWG is a logarithmic scale: each step changes diameter by a fixed ratio. The standard formula gives diameter in mm from the gauge number. Smaller AWG numbers mean thicker wire.
Variables
AWGAmerican Wire Gauge number
d_mmdiameter in millimeters
When to use
Electrical wiring, ampacity checks, and converting gauge charts to metric diameter.