Estimate electrical energy costs for computers, servers, air conditioners, and household devices. Enter wattage, usage hours, and your local electricity rate per kilowatt-hour (kWh).
Runs entirely in your browser
Find out what an appliance actually costs to run. Enter its power draw in watts, how many hours a day you use it, and your electricity rate per kilowatt-hour, and the tool estimates the energy it consumes and the cost per day, month and year.
It is a practical way to see which devices are quietly driving your bill — an always-on server, an air conditioner, a space heater or an old fridge — and to judge whether a more efficient replacement would pay for itself. Because it costs each appliance individually, you can compare them on a like-for-like basis.
The calculation runs in your browser, so your usage and rate stay private. The result is an estimate based on the figures you provide; real consumption varies with how hard a device works, but it gives a sound basis for budgeting and for deciding where to cut usage.
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