870 Watts to Amps

870 watts is 7.25 amps at 120V (DC). The exact amperage depends on your voltage and whether the circuit is DC or AC.

870 Watts to Amps at Every Voltage

VoltageDCAC (PF 0.85)AC 3-Phase (PF 0.85)
12V
DC, automotive, solar
72.5A 85.29A 49.24A
24V
DC, industrial control
36.25A 42.65A 24.62A
100V
Japan residential
8.7A 10.24A 5.91A
120V
US residential
7.25A 8.53A 4.92A
208V
US commercial three-phase
4.18A 4.92A 2.84A
220V
Legacy international / parts of Asia
3.95A 4.65A 2.69A
230V
UK / EU residential
3.78A 4.45A 2.57A
240V
US residential (dryer, range, HVAC)
3.63A 4.26A 2.46A
277V
US commercial lighting
3.14A 3.7A 2.13A
400V
UK / EU commercial three-phase
2.18A 2.56A 1.48A
460V
US industrial motor (NEC 430.250 column)
1.89A 2.23A 1.28A
480V
US industrial three-phase
1.81A 2.13A 1.23A
575V
Canadian industrial three-phase
1.51A 1.78A 1.03A

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.