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Wire Gauge Converter

Convert between AWG wire gauge and wire diameter in inches, millimeters, and cross-sectional area.

Wire Gauge Converter

Convert an American Wire Gauge (AWG) number to wire diameter in inches and millimeters, plus cross-sectional area in square millimeters, using the standard AWG formula.

Formula

D(in) = 0.005 × 92^((36-AWG)/36)

Step-by-step

  1. Diameter (in) = 0.005 × 92^((36−AWG)/36)
  2. Diameter (mm) = Diameter (in) × 25.4
  3. Area (mm²) = π × (Diameter/2)²

Example

12 AWG wire = 0.0808 in (2.053 mm) diameter, 3.309 mm² area.

FAQ

What is AWG?+

American Wire Gauge is a standard for wire diameters, mainly used in North America. Lower numbers mean thicker wire.

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