Wire Size for 15 Amp 10 Feet (120V)

StandardWire SizeAmpacityVolt DropDrop %
NEC (US)AWG 14 (2.08 mm²)20 A0.92 V0.77%
IEC (EU)1.5 mm²17.5 A1.28 V1.07%
BS (UK)1.5 mm²17.5 A1.28 V1.07%
AS/NZS1.5 mm²17.5 A1.28 V1.07%

About AWG 14

Typical use
15 A residential branch circuits — lighting, receptacles
Max breaker
15 A
Temperature rating
60 °C
NEC reference
NEC 240.4(D)(3)

Always verify local code requirements. Wire sizing depends on insulation type, ambient temperature, and conduit fill.

Adjacent Current Comparison

CurrentAWGmm²AmpacityDrop %
15 AAWG 142.08 mm²20 A0.77%
20 AAWG 142.08 mm²20 A1.02%

Adjacent Distance Comparison

DistanceAWGmm²AmpacityDrop %
10 ftAWG 142.08 mm²20 A0.77%
25 ftAWG 142.08 mm²20 A1.92%