28 Watts to Amps

28 watts is 0.2333 amps at 120V (DC). The exact amperage depends on your voltage and whether the circuit is DC or AC.

28 Watts to Amps at Every Voltage

VoltageDCAC (PF 0.85)AC 3-Phase (PF 0.85)
12V
DC, automotive, solar
2.33A 2.75A 1.58A
24V
DC, industrial control
1.17A 1.37A 0.7924A
100V
Japan residential
0.28A 0.3294A 0.1902A
120V
US residential
0.2333A 0.2745A 0.1585A
208V
US commercial three-phase
0.1346A 0.1584A 0.0914A
220V
Legacy international / parts of Asia
0.1273A 0.1497A 0.0864A
230V
UK / EU residential
0.1217A 0.1432A 0.0827A
240V
US residential (dryer, range, HVAC)
0.1167A 0.1373A 0.0792A
277V
US commercial lighting
0.1011A 0.1189A 0.0687A
400V
UK / EU commercial three-phase
0.07A 0.0824A 0.0475A
460V
US industrial motor (NEC 430.250 column)
0.0609A 0.0716A 0.0413A
480V
US industrial three-phase
0.0583A 0.0686A 0.0396A
575V
Canadian industrial three-phase
0.0487A 0.0573A 0.0331A

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.