Electricity cost calculator

Calculate exactly how much an appliance adds to your monthly bill. Ideal for tracking heaters, computers, or old refrigerators.

Check the sticker on the back of your appliance
Find "Price per kWh" on your utility bill
Daily Cost
$0.90
Monthly Cost
$27.00
Yearly Cost
$328.50

Common appliance power draw

Click a preset to fill the wattage for common household electronics.

Where's your money actually going?

Electricity bills can feel like a dark art, but the math is actually pretty blunt. To find the cost, you take the wattage, divide by 1000 to get kilowatts, and multiply it by the hours you run it and your local rate. Simple.

The usual culprits? Space heaters and old AC units. A standard 1500W space heater can easily add $50 to your monthly bill if you're not careful. I always suggest checking the sticker on any appliance you leave on all day — old refrigerators are basically "energy vampires" that cost way more than a modern model.