AWG ↔ mm ↔ mm² with full table.. Wire Gauge Converter is a free online tool from the ToolsRift Special Unit Converters collection. It runs entirely in your browser — nothing to install, no signup, and your data never leaves your device.
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How to use Wire Gauge Converter
Enter an AWG number, a diameter in mm, or an area in mm². The tool solves the AWG formula both ways and updates all fields.
Frequently asked questions
What is the AWG-to-diameter formula?
d(mm) = 0.127 × 92^((36 − AWG)/39); each 6 gauges roughly halves or doubles the diameter.
How is the area found?
Area(mm²) = π × (d/2)², computed automatically from the AWG diameter.
Does a higher AWG mean thicker wire?
No — a higher AWG number means a thinner wire, so 24 AWG is much finer than 12 AWG.
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