Wire Gauge Calculator

Complete electrical wire size calculator with AWG conversion, voltage drop, and ampacity

AWG Wire Gauge Reference Chart

AWGDiameter (mm)Area (mm²)Max Current (A)Resistance (Ω/km)
08.2553.51250.33
26.5433.6950.52
45.1921.2700.83
64.1113.3551.32
83.268.37402.10
102.595.26303.34
122.053.31205.31
141.632.08158.45
161.291.311013.4
181.020.82721.4

About Wire Gauge Calculations

Wire gauge is a measure of the cross-sectional area of a wire, which affects its current-carrying capacity and electrical resistance. In the United States, the American Wire Gauge (AWG) system is used, while metric measurements (mm²) are common in most other countries.

Always consult local electrical codes and a licensed electrician when planning electrical installations. Wire sizing depends on multiple factors beyond the calculations provided here.

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