10.21 Amps to Watts

10.21 amps is 1,225.2 watts at 120V (DC). The wattage depends on your circuit voltage.

10.21 Amps to Watts at Every Voltage

VoltageDCAC (PF 0.85)AC 3-Phase (PF 0.85)
12V
DC, automotive, solar
122.52W 104.14W 180.38W
24V
DC, industrial control
245.04W 208.28W 360.76W
100V
Japan residential
1,021W 867.85W 1,503.16W
120V
US residential
1,225.2W 1,041.42W 1,803.79W
208V
US commercial three-phase
2,123.68W 1,805.13W 3,126.57W
220V
Legacy international / parts of Asia
2,246.2W 1,909.27W 3,306.95W
230V
UK / EU residential
2,348.3W 1,996.06W 3,457.27W
240V
US residential (dryer, range, HVAC)
2,450.4W 2,082.84W 3,607.58W
277V
US commercial lighting
2,828.17W 2,403.94W 4,163.75W
400V
UK / EU commercial three-phase
4,084W 3,471.4W 6,012.64W
460V
US industrial motor (NEC 430.250 column)
4,696.6W 3,992.11W 6,914.54W
480V
US industrial three-phase
4,900.8W 4,165.68W 7,215.17W
575V
Canadian industrial three-phase
5,870.75W 4,990.14W 8,643.17W

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.