20.71 Amps to Watts

20.71 amps is 2,485.2 watts at 120V (DC). The wattage depends on your circuit voltage.

20.71 Amps to Watts at Every Voltage

VoltageDCAC (PF 0.85)AC 3-Phase (PF 0.85)
12V
DC, automotive, solar
248.52W 211.24W 365.88W
24V
DC, industrial control
497.04W 422.48W 731.76W
100V
Japan residential
2,071W 1,760.35W 3,049.02W
120V
US residential
2,485.2W 2,112.42W 3,658.82W
208V
US commercial three-phase
4,307.68W 3,661.53W 6,341.95W
220V
Legacy international / parts of Asia
4,556.2W 3,872.77W 6,707.83W
230V
UK / EU residential
4,763.3W 4,048.81W 7,012.74W
240V
US residential (dryer, range, HVAC)
4,970.4W 4,224.84W 7,317.64W
277V
US commercial lighting
5,736.67W 4,876.17W 8,445.77W
400V
UK / EU commercial three-phase
8,284W 7,041.4W 12,196.06W
460V
US industrial motor (NEC 430.250 column)
9,526.6W 8,097.61W 14,025.47W
480V
US industrial three-phase
9,940.8W 8,449.68W 14,635.28W
575V
Canadian industrial three-phase
11,908.25W 10,122.01W 17,531.84W

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.