Electricity cost calculator
Find out how much an appliance costs to run per day, month and year.
How it works
Power is shown in watts on the appliance label. Consumption in kWh = watts × hours ÷ 1000, then multiplied by your price per kWh. Appliances on standby still use a little power.
Frequently asked questions
Is this tool free?
Yes. It’s free to use, with no account and nothing to install.
Is my data private?
Yes. This tool works entirely on your device: nothing you enter or open is sent to a server.
Does it work on a phone?
Yes. It works in the browser of any recent phone, tablet or computer.