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Appliance energy cost calculator

Choose an appliance or type its wattage from the label, then set how long it runs. The price loads from your state's latest average.

W

Typical running watts. Check the label or manual for your model.

h
days
¢
Your estimateRates: EIA, August 2026
Per hour of use
$0.27
Per day (8 h)
$2.18
Energy per month
360.0 kWh

Per month$65.38

Per year
$784.51

How it is calculated

kWh = watts ÷ 1,000 × hours. Cost = kWh × price per kWh.

Thermostat-controlled appliances (air conditioners, heaters, fridges) cycle on and off, so real use is often lower than the label wattage times the hours they are switched on.

Worked example

With the starting values shown in the form (U.S. average price of 18.16¢ per kWh), the result is $65.38 (per month). Change any number and the estimate updates as you type.

Tips

Questions

How much does a 1,500 W space heater cost per hour?
It uses 1.5 kWh per hour, so multiply 1.5 by your price per kWh. At 18¢ that is 27¢ an hour.
Where do I find an appliance's wattage?
On the rating label or nameplate (often on the back or inside the door) and in the manual. If only amps are listed, watts ≈ amps × volts.

Prices by state

Pick a state in the form above, or open its page for the full picture: price history, average bill and what everyday appliances cost there.

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