4.25 Amps to Watts

4.25 amps is 510 watts at 120V (DC). The wattage depends on your circuit voltage.

4.25 Amps to Watts at Every Voltage

VoltageDCAC (PF 0.85)AC 3-Phase (PF 0.85)
12V
DC, automotive, solar
51W 43.35W 75.08W
24V
DC, industrial control
102W 86.7W 150.17W
100V
Japan residential
425W 361.25W 625.7W
120V
US residential
510W 433.5W 750.84W
208V
US commercial three-phase
884W 751.4W 1,301.46W
220V
Legacy international / parts of Asia
935W 794.75W 1,376.55W
230V
UK / EU residential
977.5W 830.88W 1,439.12W
240V
US residential (dryer, range, HVAC)
1,020W 867W 1,501.69W
277V
US commercial lighting
1,177.25W 1,000.66W 1,733.2W
400V
UK / EU commercial three-phase
1,700W 1,445W 2,502.81W
460V
US industrial motor (NEC 430.250 column)
1,955W 1,661.75W 2,878.24W
480V
US industrial three-phase
2,040W 1,734W 3,003.38W
575V
Canadian industrial three-phase
2,443.75W 2,077.19W 3,597.79W

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.