1,138 Watts to Amps

1,138 watts is 9.48 amps at 120V (DC). The exact amperage depends on your voltage and whether the circuit is DC or AC.

1,138 Watts to Amps at Every Voltage

VoltageDCAC (PF 0.85)AC 3-Phase (PF 0.85)
12V
DC, automotive, solar
94.83A 111.57A 64.41A
24V
DC, industrial control
47.42A 55.78A 32.21A
100V
Japan residential
11.38A 13.39A 7.73A
120V
US residential
9.48A 11.16A 6.44A
208V
US commercial three-phase
5.47A 6.44A 3.72A
220V
Legacy international / parts of Asia
5.17A 6.09A 3.51A
230V
UK / EU residential
4.95A 5.82A 3.36A
240V
US residential (dryer, range, HVAC)
4.74A 5.58A 3.22A
277V
US commercial lighting
4.11A 4.83A 2.79A
400V
UK / EU commercial three-phase
2.85A 3.35A 1.93A
460V
US industrial motor (NEC 430.250 column)
2.47A 2.91A 1.68A
480V
US industrial three-phase
2.37A 2.79A 1.61A
575V
Canadian industrial three-phase
1.98A 2.33A 1.34A

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.