20.8 Amps to Watts

20.8 amps is 2,496 watts at 120V (DC). The wattage depends on your circuit voltage.

20.8 Amps to Watts at Every Voltage

VoltageDCAC (PF 0.85)AC 3-Phase (PF 0.85)
12V
DC, automotive, solar
249.6W 212.16W 367.47W
24V
DC, industrial control
499.2W 424.32W 734.94W
100V
Japan residential
2,080W 1,768W 3,062.27W
120V
US residential
2,496W 2,121.6W 3,674.72W
208V
US commercial three-phase
4,326.4W 3,677.44W 6,369.51W
220V
Legacy international / parts of Asia
4,576W 3,889.6W 6,736.98W
230V
UK / EU residential
4,784W 4,066.4W 7,043.21W
240V
US residential (dryer, range, HVAC)
4,992W 4,243.2W 7,349.44W
277V
US commercial lighting
5,761.6W 4,897.36W 8,482.48W
400V
UK / EU commercial three-phase
8,320W 7,072W 12,249.06W
460V
US industrial motor (NEC 430.250 column)
9,568W 8,132.8W 14,086.42W
480V
US industrial three-phase
9,984W 8,486.4W 14,698.88W
575V
Canadian industrial three-phase
11,960W 10,166W 17,608.03W

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.