1,278 Watts to Amps

1,278 watts is 10.65 amps at 120V (DC). The exact amperage depends on your voltage and whether the circuit is DC or AC.

1,278 Watts to Amps at Every Voltage

VoltageDCAC (PF 0.85)AC 3-Phase (PF 0.85)
12V
DC, automotive, solar
106.5A 125.29A 72.34A
24V
DC, industrial control
53.25A 62.65A 36.17A
100V
Japan residential
12.78A 15.04A 8.68A
120V
US residential
10.65A 12.53A 7.23A
208V
US commercial three-phase
6.14A 7.23A 4.17A
220V
Legacy international / parts of Asia
5.81A 6.83A 3.95A
230V
UK / EU residential
5.56A 6.54A 3.77A
240V
US residential (dryer, range, HVAC)
5.33A 6.26A 3.62A
277V
US commercial lighting
4.61A 5.43A 3.13A
400V
UK / EU commercial three-phase
3.2A 3.76A 2.17A
460V
US industrial motor (NEC 430.250 column)
2.78A 3.27A 1.89A
480V
US industrial three-phase
2.66A 3.13A 1.81A
575V
Canadian industrial three-phase
2.22A 2.61A 1.51A

Other Wattages

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.