42.57 Amps to Watts

42.57 amps is 5,108.4 watts at 120V (DC). The wattage depends on your circuit voltage.

42.57 Amps to Watts at Every Voltage

VoltageDCAC (PF 0.85)AC 3-Phase (PF 0.85)
12V
DC, automotive, solar
510.84W 434.21W 752.08W
24V
DC, industrial control
1,021.68W 868.43W 1,504.16W
100V
Japan residential
4,257W 3,618.45W 6,267.34W
120V
US residential
5,108.4W 4,342.14W 7,520.81W
208V
US commercial three-phase
8,854.56W 7,526.38W 13,036.07W
220V
Legacy international / parts of Asia
9,365.4W 7,960.59W 13,788.15W
230V
UK / EU residential
9,791.1W 8,322.44W 14,414.88W
240V
US residential (dryer, range, HVAC)
10,216.8W 8,684.28W 15,041.61W
277V
US commercial lighting
11,791.89W 10,023.11W 17,360.53W
400V
UK / EU commercial three-phase
17,028W 14,473.8W 25,069.36W
460V
US industrial motor (NEC 430.250 column)
19,582.2W 16,644.87W 28,829.76W
480V
US industrial three-phase
20,433.6W 17,368.56W 30,083.23W
575V
Canadian industrial three-phase
24,477.75W 20,806.09W 36,037.2W

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.