1 Amps to Watts

1 amps is 120 watts at 120V (DC). The wattage depends on your circuit voltage.

1 Amps to Watts at Every Voltage

VoltageDCAC (PF 0.85)AC 3-Phase (PF 0.85)
12V
DC, automotive, solar
12W 10.2W 17.67W
24V
DC, industrial control
24W 20.4W 35.33W
100V
Japan residential
100W 85W 147.22W
120V
US residential
120W 102W 176.67W
208V
US commercial three-phase
208W 176.8W 306.23W
220V
Legacy international / parts of Asia
220W 187W 323.89W
230V
UK / EU residential
230W 195.5W 338.62W
240V
US residential (dryer, range, HVAC)
240W 204W 353.34W
277V
US commercial lighting
277W 235.45W 407.81W
400V
UK / EU commercial three-phase
400W 340W 588.9W
460V
US industrial motor (NEC 430.250 column)
460W 391W 677.23W
480V
US industrial three-phase
480W 408W 706.68W
575V
Canadian industrial three-phase
575W 488.75W 846.54W

Other Amperages

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.