42,020 Watts to Amps

42,020 watts is 350.17 amps at 120V (DC). The exact amperage depends on your voltage and whether the circuit is DC or AC.

42,020 Watts to Amps at Every Voltage

VoltageDCAC (PF 0.85)AC 3-Phase (PF 0.85)
12V
DC, automotive, solar
3,501.67A 4,119.61A 2,378.46A
24V
DC, industrial control
1,750.83A 2,059.8A 1,189.23A
100V
Japan residential
420.2A 494.35A 285.41A
120V
US residential
350.17A 411.96A 237.85A
208V
US commercial three-phase
202.02A 237.67A 137.22A
220V
Legacy international / parts of Asia
191A 224.71A 129.73A
230V
UK / EU residential
182.7A 214.94A 124.09A
240V
US residential (dryer, range, HVAC)
175.08A 205.98A 118.92A
277V
US commercial lighting
151.7A 178.47A 103.04A
400V
UK / EU commercial three-phase
105.05A 123.59A 71.35A
460V
US industrial motor (NEC 430.250 column)
91.35A 107.47A 62.05A
480V
US industrial three-phase
87.54A 102.99A 59.46A
575V
Canadian industrial three-phase
73.08A 85.97A 49.64A

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.