3.4 Amps to Watts

3.4 amps is 408 watts at 120V (DC). The wattage depends on your circuit voltage.

3.4 Amps to Watts at Every Voltage

VoltageDCAC (PF 0.85)AC 3-Phase (PF 0.85)
12V
DC, automotive, solar
40.8W 34.68W 60.07W
24V
DC, industrial control
81.6W 69.36W 120.14W
100V
Japan residential
340W 289W 500.56W
120V
US residential
408W 346.8W 600.68W
208V
US commercial three-phase
707.2W 601.12W 1,041.17W
220V
Legacy international / parts of Asia
748W 635.8W 1,101.24W
230V
UK / EU residential
782W 664.7W 1,151.29W
240V
US residential (dryer, range, HVAC)
816W 693.6W 1,201.35W
277V
US commercial lighting
941.8W 800.53W 1,386.56W
400V
UK / EU commercial three-phase
1,360W 1,156W 2,002.25W
460V
US industrial motor (NEC 430.250 column)
1,564W 1,329.4W 2,302.59W
480V
US industrial three-phase
1,632W 1,387.2W 2,402.7W
575V
Canadian industrial three-phase
1,955W 1,661.75W 2,878.24W

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.