Electricity Cost Calculator
What an appliance costs to run per day, month and year.
Input
This tool runs entirely in your browser. The data you paste or load is never uploaded.
Result
Enter your input, then run the tool.
About this tool
Calculates the energy used and the running cost of an appliance from its power in watts, hours of use per day and your price per kWh, per day, month and year, including standby consumption if you enter it.
How to use it
- Enter the appliance power in watts and the hours of use per day.
- Enter your price per kWh, and the standby power if any.
- Read the kWh used and the cost per day, month and year.
Frequently asked questions
Where do I find the power?
On the label or in the manual, in watts (W). For a precise figure, a plug-in energy meter measures real consumption.
Why include standby?
Devices on standby draw power all day. A 5 W standby is about 44 kWh a year, which can cost more than occasional use.
Keep going
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