← All converters

Watts to Amps at 120V

Convert watts to amps at 120V AC for sizing US household circuits.

→
How to use this converter
  1. 1Enter wattage.
  2. 2Amps at 120V appears instantly.
  3. 3Add 20% for continuous loads when sizing a breaker.
Common questions
1500W ÷ 120V = 12.5A. × 1.25 for continuous = 15.6A. Need a 20A breaker.
1800W max. Continuous limit 80% = 1440W.
Related converters
Watts to Amps (240V)Amps to WattsWatts to KilowattskW to Amps (120V)