404 Watts to Amps

404 watts is 3.37 amps at 120V (DC). The exact amperage depends on your voltage and whether the circuit is DC or AC.

404 Watts to Amps at Every Voltage

VoltageDCAC (PF 0.85)AC 3-Phase (PF 0.85)
12V
DC, automotive, solar
33.67A 39.61A 22.87A
24V
DC, industrial control
16.83A 19.8A 11.43A
100V
Japan residential
4.04A 4.75A 2.74A
120V
US residential
3.37A 3.96A 2.29A
208V
US commercial three-phase
1.94A 2.29A 1.32A
220V
Legacy international / parts of Asia
1.84A 2.16A 1.25A
230V
UK / EU residential
1.76A 2.07A 1.19A
240V
US residential (dryer, range, HVAC)
1.68A 1.98A 1.14A
277V
US commercial lighting
1.46A 1.72A 0.9907A
400V
UK / EU commercial three-phase
1.01A 1.19A 0.686A
460V
US industrial motor (NEC 430.250 column)
0.8783A 1.03A 0.5965A
480V
US industrial three-phase
0.8417A 0.9902A 0.5717A
575V
Canadian industrial three-phase
0.7026A 0.8266A 0.4772A

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.