900 Watts to Amps

900 watts is 7.5 amps at 120V (DC). The exact amperage depends on your voltage and whether the circuit is DC or AC.

900 Watts to Amps at Every Voltage

VoltageDCAC (PF 0.85)AC 3-Phase (PF 0.85)
12V
DC, automotive, solar
75A 88.24A 50.94A
24V
DC, industrial control
37.5A 44.12A 25.47A
100V
Japan residential
9A 10.59A 6.11A
120V
US residential
7.5A 8.82A 5.09A
208V
US commercial three-phase
4.33A 5.09A 2.94A
220V
Legacy international / parts of Asia
4.09A 4.81A 2.78A
230V
UK / EU residential
3.91A 4.6A 2.66A
240V
US residential (dryer, range, HVAC)
3.75A 4.41A 2.55A
277V
US commercial lighting
3.25A 3.82A 2.21A
400V
UK / EU commercial three-phase
2.25A 2.65A 1.53A
460V
US industrial motor (NEC 430.250 column)
1.96A 2.3A 1.33A
480V
US industrial three-phase
1.88A 2.21A 1.27A
575V
Canadian industrial three-phase
1.57A 1.84A 1.06A

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.