Wire Gauge Converter
Enter a wire gauge and convert AWG to mm diameter, square mm and SWG instantly.
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How to use
- Enter your value in the boxes above or select an option.
- The result updates live — no need to press any button.
- Change the value or unit and the new result will show automatically.
Note
AWG formula: diameter (mm) = 0.127 x 92^((36 - AWG)/39). SWG (British) numbers differ from AWG — the closest SWG is shown here based on diameter. Solar DC cable usually uses 4 mm2 and 6 mm2.