449 Watts to Amps

449 watts is 3.74 amps at 120V (DC). The exact amperage depends on your voltage and whether the circuit is DC or AC.

449 Watts to Amps at Every Voltage

VoltageDCAC (PF 0.85)AC 3-Phase (PF 0.85)
12V
DC, automotive, solar
37.42A 44.02A 25.41A
24V
DC, industrial control
18.71A 22.01A 12.71A
100V
Japan residential
4.49A 5.28A 3.05A
120V
US residential
3.74A 4.4A 2.54A
208V
US commercial three-phase
2.16A 2.54A 1.47A
220V
Legacy international / parts of Asia
2.04A 2.4A 1.39A
230V
UK / EU residential
1.95A 2.3A 1.33A
240V
US residential (dryer, range, HVAC)
1.87A 2.2A 1.27A
277V
US commercial lighting
1.62A 1.91A 1.1A
400V
UK / EU commercial three-phase
1.12A 1.32A 0.7624A
460V
US industrial motor (NEC 430.250 column)
0.9761A 1.15A 0.663A
480V
US industrial three-phase
0.9354A 1.1A 0.6354A
575V
Canadian industrial three-phase
0.7809A 0.9187A 0.5304A

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.