42.18 Amps to Watts

42.18 amps is 5,061.6 watts at 120V (DC). The wattage depends on your circuit voltage.

42.18 Amps to Watts at Every Voltage

VoltageDCAC (PF 0.85)AC 3-Phase (PF 0.85)
12V
DC, automotive, solar
506.16W 430.24W 745.19W
24V
DC, industrial control
1,012.32W 860.47W 1,490.38W
100V
Japan residential
4,218W 3,585.3W 6,209.92W
120V
US residential
5,061.6W 4,302.36W 7,451.91W
208V
US commercial three-phase
8,773.44W 7,457.42W 12,916.64W
220V
Legacy international / parts of Asia
9,279.6W 7,887.66W 13,661.83W
230V
UK / EU residential
9,701.4W 8,246.19W 14,282.82W
240V
US residential (dryer, range, HVAC)
10,123.2W 8,604.72W 14,903.81W
277V
US commercial lighting
11,683.86W 9,931.28W 17,201.48W
400V
UK / EU commercial three-phase
16,872W 14,341.2W 24,839.69W
460V
US industrial motor (NEC 430.250 column)
19,402.8W 16,492.38W 28,565.64W
480V
US industrial three-phase
20,246.4W 17,209.44W 29,807.62W
575V
Canadian industrial three-phase
24,253.5W 20,615.48W 35,707.05W

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.