18.18 Amps to Watts

18.18 amps is 2,181.6 watts at 120V (DC). The wattage depends on your circuit voltage.

18.18 Amps to Watts at Every Voltage

VoltageDCAC (PF 0.85)AC 3-Phase (PF 0.85)
12V
DC, automotive, solar
218.16W 185.44W 321.18W
24V
DC, industrial control
436.32W 370.87W 642.37W
100V
Japan residential
1,818W 1,545.3W 2,676.54W
120V
US residential
2,181.6W 1,854.36W 3,211.85W
208V
US commercial three-phase
3,781.44W 3,214.22W 5,567.2W
220V
Legacy international / parts of Asia
3,999.6W 3,399.66W 5,888.38W
230V
UK / EU residential
4,181.4W 3,554.19W 6,156.04W
240V
US residential (dryer, range, HVAC)
4,363.2W 3,708.72W 6,423.69W
277V
US commercial lighting
5,035.86W 4,280.48W 7,414.01W
400V
UK / EU commercial three-phase
7,272W 6,181.2W 10,706.15W
460V
US industrial motor (NEC 430.250 column)
8,362.8W 7,108.38W 12,312.08W
480V
US industrial three-phase
8,726.4W 7,417.44W 12,847.38W
575V
Canadian industrial three-phase
10,453.5W 8,885.48W 15,390.09W

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.