31.1 Amps to Watts

31.1 amps is 3,732 watts at 120V (DC). The wattage depends on your circuit voltage.

31.1 Amps to Watts at Every Voltage

VoltageDCAC (PF 0.85)AC 3-Phase (PF 0.85)
12V
DC, automotive, solar
373.2W 317.22W 549.44W
24V
DC, industrial control
746.4W 634.44W 1,098.88W
100V
Japan residential
3,110W 2,643.5W 4,578.68W
120V
US residential
3,732W 3,172.2W 5,494.41W
208V
US commercial three-phase
6,468.8W 5,498.48W 9,523.65W
220V
Legacy international / parts of Asia
6,842W 5,815.7W 10,073.09W
230V
UK / EU residential
7,153W 6,080.05W 10,530.96W
240V
US residential (dryer, range, HVAC)
7,464W 6,344.4W 10,988.82W
277V
US commercial lighting
8,614.7W 7,322.5W 12,682.93W
400V
UK / EU commercial three-phase
12,440W 10,574W 18,314.71W
460V
US industrial motor (NEC 430.250 column)
14,306W 12,160.1W 21,061.91W
480V
US industrial three-phase
14,928W 12,688.8W 21,977.65W
575V
Canadian industrial three-phase
17,882.5W 15,200.13W 26,327.39W

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.