243 Watts to Amps

243 watts is 2.03 amps at 120V (DC). The exact amperage depends on your voltage and whether the circuit is DC or AC.

243 Watts to Amps at Every Voltage

VoltageDCAC (PF 0.85)AC 3-Phase (PF 0.85)
12V
DC, automotive, solar
20.25A 23.82A 13.75A
24V
DC, industrial control
10.13A 11.91A 6.88A
100V
Japan residential
2.43A 2.86A 1.65A
120V
US residential
2.03A 2.38A 1.38A
208V
US commercial three-phase
1.17A 1.37A 0.7935A
220V
Legacy international / parts of Asia
1.1A 1.3A 0.7502A
230V
UK / EU residential
1.06A 1.24A 0.7176A
240V
US residential (dryer, range, HVAC)
1.01A 1.19A 0.6877A
277V
US commercial lighting
0.8773A 1.03A 0.5959A
400V
UK / EU commercial three-phase
0.6075A 0.7147A 0.4126A
460V
US industrial motor (NEC 430.250 column)
0.5283A 0.6215A 0.3588A
480V
US industrial three-phase
0.5063A 0.5956A 0.3439A
575V
Canadian industrial three-phase
0.4226A 0.4972A 0.2871A

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.