20,429 Watts to Amps

20,429 watts is 170.24 amps at 120V (DC). The exact amperage depends on your voltage and whether the circuit is DC or AC.

20,429 Watts to Amps at Every Voltage

VoltageDCAC (PF 0.85)AC 3-Phase (PF 0.85)
12V
DC, automotive, solar
1,702.42A 2,002.84A 1,156.34A
24V
DC, industrial control
851.21A 1,001.42A 578.17A
100V
Japan residential
204.29A 240.34A 138.76A
120V
US residential
170.24A 200.28A 115.63A
208V
US commercial three-phase
98.22A 115.55A 66.71A
220V
Legacy international / parts of Asia
92.86A 109.25A 63.07A
230V
UK / EU residential
88.82A 104.5A 60.33A
240V
US residential (dryer, range, HVAC)
85.12A 100.14A 57.82A
277V
US commercial lighting
73.75A 86.77A 50.09A
400V
UK / EU commercial three-phase
51.07A 60.09A 34.69A
460V
US industrial motor (NEC 430.250 column)
44.41A 52.25A 30.17A
480V
US industrial three-phase
42.56A 50.07A 28.91A
575V
Canadian industrial three-phase
35.53A 41.8A 24.13A

Other Wattages

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.