Circuit Breaker Load Calculator

Calculate the total electrical load on a circuit and find the right breaker size for your appliances and devices.

Voltage
120V for standard outlets and lighting. 240V for dryers, ranges, water heaters, and HVAC.

Appliances and Devices
Enter the wattage for each device on this circuit. Check the label on the device or use the common values below.

Common Wattages
Refrigerator 150W, Microwave 1000W, Dishwasher 1200W, Clothes Dryer 5000W, Electric Range 8000W, Window AC 1200W, Hair Dryer 1875W, Space Heater 1500W, Laptop 65W, TV 100W, LED Light Bulb 10W, Ceiling Fan 75W.