Wire Gauge Converter
Convert AWG wire gauge to millimeters, mm² and ampacity.
–Diameter (mm)
–Area (mm²)
–Diameter (in)
–Max amps*
*Conservative chassis-wiring estimate. Always follow local electrical codes.
How to use
Enter an AWG number — diameter, area and ampacity appear; everything runs in your browser.
Frequently asked questions
Is a bigger AWG number thicker?
No — the scale is inverted: 10 AWG is much thicker than 24 AWG.
What is ampacity?
The safe current a wire can carry; it depends on thickness and insulation.
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