42.5 Amps to Watts

42.5 amps is 5,100 watts at 120V (DC). The wattage depends on your circuit voltage.

42.5 Amps to Watts at Every Voltage

VoltageDCAC (PF 0.85)AC 3-Phase (PF 0.85)
12V
DC, automotive, solar
510W 433.5W 750.84W
24V
DC, industrial control
1,020W 867W 1,501.69W
100V
Japan residential
4,250W 3,612.5W 6,257.03W
120V
US residential
5,100W 4,335W 7,508.44W
208V
US commercial three-phase
8,840W 7,514W 13,014.63W
220V
Legacy international / parts of Asia
9,350W 7,947.5W 13,765.47W
230V
UK / EU residential
9,775W 8,308.75W 14,391.18W
240V
US residential (dryer, range, HVAC)
10,200W 8,670W 15,016.88W
277V
US commercial lighting
11,772.5W 10,006.63W 17,331.98W
400V
UK / EU commercial three-phase
17,000W 14,450W 25,028.13W
460V
US industrial motor (NEC 430.250 column)
19,550W 16,617.5W 28,782.35W
480V
US industrial three-phase
20,400W 17,340W 30,033.76W
575V
Canadian industrial three-phase
24,437.5W 20,771.88W 35,977.94W

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.