42.45 Amps to Watts

42.45 amps is 5,094 watts at 120V (DC). The wattage depends on your circuit voltage.

42.45 Amps to Watts at Every Voltage

VoltageDCAC (PF 0.85)AC 3-Phase (PF 0.85)
12V
DC, automotive, solar
509.4W 432.99W 749.96W
24V
DC, industrial control
1,018.8W 865.98W 1,499.92W
100V
Japan residential
4,245W 3,608.25W 6,249.67W
120V
US residential
5,094W 4,329.9W 7,499.61W
208V
US commercial three-phase
8,829.6W 7,505.16W 12,999.32W
220V
Legacy international / parts of Asia
9,339W 7,938.15W 13,749.28W
230V
UK / EU residential
9,763.5W 8,298.98W 14,374.25W
240V
US residential (dryer, range, HVAC)
10,188W 8,659.8W 14,999.21W
277V
US commercial lighting
11,758.65W 9,994.85W 17,311.59W
400V
UK / EU commercial three-phase
16,980W 14,433W 24,998.69W
460V
US industrial motor (NEC 430.250 column)
19,527W 16,597.95W 28,748.49W
480V
US industrial three-phase
20,376W 17,319.6W 29,998.43W
575V
Canadian industrial three-phase
24,408.75W 20,747.44W 35,935.62W

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.