3.18 Amps to Watts

3.18 amps is 381.6 watts at 120V (DC). The wattage depends on your circuit voltage.

3.18 Amps to Watts at Every Voltage

VoltageDCAC (PF 0.85)AC 3-Phase (PF 0.85)
12V
DC, automotive, solar
38.16W 32.44W 56.18W
24V
DC, industrial control
76.32W 64.87W 112.36W
100V
Japan residential
318W 270.3W 468.17W
120V
US residential
381.6W 324.36W 561.81W
208V
US commercial three-phase
661.44W 562.22W 973.8W
220V
Legacy international / parts of Asia
699.6W 594.66W 1,029.98W
230V
UK / EU residential
731.4W 621.69W 1,076.8W
240V
US residential (dryer, range, HVAC)
763.2W 648.72W 1,123.62W
277V
US commercial lighting
880.86W 748.73W 1,296.84W
400V
UK / EU commercial three-phase
1,272W 1,081.2W 1,872.69W
460V
US industrial motor (NEC 430.250 column)
1,462.8W 1,243.38W 2,153.6W
480V
US industrial three-phase
1,526.4W 1,297.44W 2,247.23W
575V
Canadian industrial three-phase
1,828.5W 1,554.23W 2,692W

Other Amperages

This calculator provides estimates for reference purposes only. Always consult a licensed electrician and verify compliance with the National Electrical Code (NEC) and local electrical codes before performing any electrical work.