100 Amps to Watts

100 amps is 12,000 watts at 120V (DC). The wattage depends on your circuit voltage.

100 Amps to Watts at Every Voltage

VoltageDCAC (PF 0.85)AC 3-Phase (PF 0.85)
12V
DC, automotive, solar
1,200W 1,020W 1,766.69W
24V
DC, industrial control
2,400W 2,040W 3,533.38W
100V
Japan residential
10,000W 8,500W 14,722.43W
120V
US residential
12,000W 10,200W 17,666.92W
208V
US commercial three-phase
20,800W 17,680W 30,622.66W
220V
Legacy international / parts of Asia
22,000W 18,700W 32,389.35W
230V
UK / EU residential
23,000W 19,550W 33,861.59W
240V
US residential (dryer, range, HVAC)
24,000W 20,400W 35,333.84W
277V
US commercial lighting
27,700W 23,545W 40,781.14W
400V
UK / EU commercial three-phase
40,000W 34,000W 58,889.73W
460V
US industrial motor (NEC 430.250 column)
46,000W 39,100W 67,723.19W
480V
US industrial three-phase
48,000W 40,800W 70,667.67W
575V
Canadian industrial three-phase
57,500W 48,875W 84,653.98W

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.