315 Watts to Amps

315 watts is 2.63 amps at 120V (DC). The exact amperage depends on your voltage and whether the circuit is DC or AC.

315 Watts to Amps at Every Voltage

VoltageDCAC (PF 0.85)AC 3-Phase (PF 0.85)
12V
DC, automotive, solar
26.25A 30.88A 17.83A
24V
DC, industrial control
13.13A 15.44A 8.91A
100V
Japan residential
3.15A 3.71A 2.14A
120V
US residential
2.63A 3.09A 1.78A
208V
US commercial three-phase
1.51A 1.78A 1.03A
220V
Legacy international / parts of Asia
1.43A 1.68A 0.9725A
230V
UK / EU residential
1.37A 1.61A 0.9303A
240V
US residential (dryer, range, HVAC)
1.31A 1.54A 0.8915A
277V
US commercial lighting
1.14A 1.34A 0.7724A
400V
UK / EU commercial three-phase
0.7875A 0.9265A 0.5349A
460V
US industrial motor (NEC 430.250 column)
0.6848A 0.8056A 0.4651A
480V
US industrial three-phase
0.6563A 0.7721A 0.4457A
575V
Canadian industrial three-phase
0.5478A 0.6445A 0.3721A

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.