310 Watts to Amps

310 watts is 2.58 amps at 120V (DC). The exact amperage depends on your voltage and whether the circuit is DC or AC.

310 Watts to Amps at Every Voltage

VoltageDCAC (PF 0.85)AC 3-Phase (PF 0.85)
12V
DC, automotive, solar
25.83A 30.39A 17.55A
24V
DC, industrial control
12.92A 15.2A 8.77A
100V
Japan residential
3.1A 3.65A 2.11A
120V
US residential
2.58A 3.04A 1.75A
208V
US commercial three-phase
1.49A 1.75A 1.01A
220V
Legacy international / parts of Asia
1.41A 1.66A 0.9571A
230V
UK / EU residential
1.35A 1.59A 0.9155A
240V
US residential (dryer, range, HVAC)
1.29A 1.52A 0.8773A
277V
US commercial lighting
1.12A 1.32A 0.7602A
400V
UK / EU commercial three-phase
0.775A 0.9118A 0.5264A
460V
US industrial motor (NEC 430.250 column)
0.6739A 0.7928A 0.4577A
480V
US industrial three-phase
0.6458A 0.7598A 0.4387A
575V
Canadian industrial three-phase
0.5391A 0.6343A 0.3662A

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.