9 Watts to Amps

9 watts is 0.075 amps at 120V (DC). The exact amperage depends on your voltage and whether the circuit is DC or AC.

9 Watts to Amps at Every Voltage

VoltageDCAC (PF 0.85)AC 3-Phase (PF 0.85)
12V
DC, automotive, solar
0.75A 0.8824A 0.5094A
24V
DC, industrial control
0.375A 0.4412A 0.2547A
100V
Japan residential
0.09A 0.1059A 0.0611A
120V
US residential
0.075A 0.0882A 0.0509A
208V
US commercial three-phase
0.0433A 0.0509A 0.0294A
220V
Legacy international / parts of Asia
0.0409A 0.0481A 0.0278A
230V
UK / EU residential
0.0391A 0.046A 0.0266A
240V
US residential (dryer, range, HVAC)
0.0375A 0.0441A 0.0255A
277V
US commercial lighting
0.0325A 0.0382A 0.0221A
400V
UK / EU commercial three-phase
0.0225A 0.0265A 0.0153A
460V
US industrial motor (NEC 430.250 column)
0.0196A 0.023A 0.0133A
480V
US industrial three-phase
0.0188A 0.0221A 0.0127A
575V
Canadian industrial three-phase
0.0157A 0.0184A 0.0106A

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.