4,490 Watts to Amps

4,490 watts is 37.42 amps at 120V (DC). The exact amperage depends on your voltage and whether the circuit is DC or AC.

4,490 Watts to Amps at Every Voltage

VoltageDCAC (PF 0.85)AC 3-Phase (PF 0.85)
12V
DC, automotive, solar
374.17A 440.2A 254.15A
24V
DC, industrial control
187.08A 220.1A 127.07A
100V
Japan residential
44.9A 52.82A 30.5A
120V
US residential
37.42A 44.02A 25.41A
208V
US commercial three-phase
21.59A 25.4A 14.66A
220V
Legacy international / parts of Asia
20.41A 24.01A 13.86A
230V
UK / EU residential
19.52A 22.97A 13.26A
240V
US residential (dryer, range, HVAC)
18.71A 22.01A 12.71A
277V
US commercial lighting
16.21A 19.07A 11.01A
400V
UK / EU commercial three-phase
11.23A 13.21A 7.62A
460V
US industrial motor (NEC 430.250 column)
9.76A 11.48A 6.63A
480V
US industrial three-phase
9.35A 11A 6.35A
575V
Canadian industrial three-phase
7.81A 9.19A 5.3A

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.