31.2 Amps to Watts

31.2 amps is 3,744 watts at 120V (DC). The wattage depends on your circuit voltage.

31.2 Amps to Watts at Every Voltage

VoltageDCAC (PF 0.85)AC 3-Phase (PF 0.85)
12V
DC, automotive, solar
374.4W 318.24W 551.21W
24V
DC, industrial control
748.8W 636.48W 1,102.42W
100V
Japan residential
3,120W 2,652W 4,593.4W
120V
US residential
3,744W 3,182.4W 5,512.08W
208V
US commercial three-phase
6,489.6W 5,516.16W 9,554.27W
220V
Legacy international / parts of Asia
6,864W 5,834.4W 10,105.48W
230V
UK / EU residential
7,176W 6,099.6W 10,564.82W
240V
US residential (dryer, range, HVAC)
7,488W 6,364.8W 11,024.16W
277V
US commercial lighting
8,642.4W 7,346.04W 12,723.71W
400V
UK / EU commercial three-phase
12,480W 10,608W 18,373.59W
460V
US industrial motor (NEC 430.250 column)
14,352W 12,199.2W 21,129.63W
480V
US industrial three-phase
14,976W 12,729.6W 22,048.31W
575V
Canadian industrial three-phase
17,940W 15,249W 26,412.04W

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.