49 Watts to Amps

49 watts is 0.4083 amps at 120V (DC). The exact amperage depends on your voltage and whether the circuit is DC or AC.

49 Watts to Amps at Every Voltage

VoltageDCAC (PF 0.85)AC 3-Phase (PF 0.85)
12V
DC, automotive, solar
4.08A 4.8A 2.77A
24V
DC, industrial control
2.04A 2.4A 1.39A
100V
Japan residential
0.49A 0.5765A 0.3328A
120V
US residential
0.4083A 0.4804A 0.2774A
208V
US commercial three-phase
0.2356A 0.2771A 0.16A
220V
Legacy international / parts of Asia
0.2227A 0.262A 0.1513A
230V
UK / EU residential
0.213A 0.2506A 0.1447A
240V
US residential (dryer, range, HVAC)
0.2042A 0.2402A 0.1387A
277V
US commercial lighting
0.1769A 0.2081A 0.1202A
400V
UK / EU commercial three-phase
0.1225A 0.1441A 0.0832A
460V
US industrial motor (NEC 430.250 column)
0.1065A 0.1253A 0.0724A
480V
US industrial three-phase
0.1021A 0.1201A 0.0693A
575V
Canadian industrial three-phase
0.0852A 0.1003A 0.0579A

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.