479 Watts to Amps

479 watts is 3.99 amps at 120V (DC). The exact amperage depends on your voltage and whether the circuit is DC or AC.

479 Watts to Amps at Every Voltage

VoltageDCAC (PF 0.85)AC 3-Phase (PF 0.85)
12V
DC, automotive, solar
39.92A 46.96A 27.11A
24V
DC, industrial control
19.96A 23.48A 13.56A
100V
Japan residential
4.79A 5.64A 3.25A
120V
US residential
3.99A 4.7A 2.71A
208V
US commercial three-phase
2.3A 2.71A 1.56A
220V
Legacy international / parts of Asia
2.18A 2.56A 1.48A
230V
UK / EU residential
2.08A 2.45A 1.41A
240V
US residential (dryer, range, HVAC)
2A 2.35A 1.36A
277V
US commercial lighting
1.73A 2.03A 1.17A
400V
UK / EU commercial three-phase
1.2A 1.41A 0.8134A
460V
US industrial motor (NEC 430.250 column)
1.04A 1.23A 0.7073A
480V
US industrial three-phase
0.9979A 1.17A 0.6778A
575V
Canadian industrial three-phase
0.833A 0.9801A 0.5658A

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.