3,720 Watts to Amps

3,720 watts is 31 amps at 120V (DC). The exact amperage depends on your voltage and whether the circuit is DC or AC.

3,720 Watts to Amps at Every Voltage

VoltageDCAC (PF 0.85)AC 3-Phase (PF 0.85)
12V
DC, automotive, solar
310A 364.71A 210.56A
24V
DC, industrial control
155A 182.35A 105.28A
100V
Japan residential
37.2A 43.76A 25.27A
120V
US residential
31A 36.47A 21.06A
208V
US commercial three-phase
17.88A 21.04A 12.15A
220V
Legacy international / parts of Asia
16.91A 19.89A 11.49A
230V
UK / EU residential
16.17A 19.03A 10.99A
240V
US residential (dryer, range, HVAC)
15.5A 18.24A 10.53A
277V
US commercial lighting
13.43A 15.8A 9.12A
400V
UK / EU commercial three-phase
9.3A 10.94A 6.32A
460V
US industrial motor (NEC 430.250 column)
8.09A 9.51A 5.49A
480V
US industrial three-phase
7.75A 9.12A 5.26A
575V
Canadian industrial three-phase
6.47A 7.61A 4.39A

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.