Wire Ampacity Calculator
Estimate safe current-carrying capacity of copper wire based on AWG gauge.
A/cmil
Estimated Ampacity
12.3 A
Wire Area4,107 cmil
Estimated Ampacity vs AWG Gauge Number
Wire Ampacity
I_max = Area x Current_Density
Typical chassis wiring: 0.003 A/cmil. Always check NEC tables for installations.
Example Calculation
14 AWG copper wire.
- 01Diameter = 64.08 mils
- 02Area = 4106 cmil
- 03Ampacity = 4106 x 0.003 = 12.3 A
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