Electricity Cost Calculator: What Any Appliance Costs to Run

Calculate what any appliance costs per hour, day, and month. Enter watts and your rate — the math and the national average are both built in.

Appliance electricity cost calculator

Enter the appliance's wattage (check the label or manual), how many hours a day it runs, and your rate from your bill. Don't know your rate? The national average is pre-filled.

Appliance wattage (W) Hours used per day Your rate ($ per kWh) U.S. residential average (EIA, July 2026): 18.31¢. Find yours: total electric charges ÷ total kWh on your bill.