1,251 Watts to Amps

1,251 watts is 10.43 amps at 120V (DC). The exact amperage depends on your voltage and whether the circuit is DC or AC.

1,251 Watts to Amps at Every Voltage

VoltageDCAC (PF 0.85)AC 3-Phase (PF 0.85)
12V
DC, automotive, solar
104.25A 122.65A 70.81A
24V
DC, industrial control
52.13A 61.32A 35.41A
100V
Japan residential
12.51A 14.72A 8.5A
120V
US residential
10.43A 12.26A 7.08A
208V
US commercial three-phase
6.01A 7.08A 4.09A
220V
Legacy international / parts of Asia
5.69A 6.69A 3.86A
230V
UK / EU residential
5.44A 6.4A 3.69A
240V
US residential (dryer, range, HVAC)
5.21A 6.13A 3.54A
277V
US commercial lighting
4.52A 5.31A 3.07A
400V
UK / EU commercial three-phase
3.13A 3.68A 2.12A
460V
US industrial motor (NEC 430.250 column)
2.72A 3.2A 1.85A
480V
US industrial three-phase
2.61A 3.07A 1.77A
575V
Canadian industrial three-phase
2.18A 2.56A 1.48A

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.