How kWh electricity costs work
A kilowatt-hour is the energy used by a 1 kW appliance running for one hour. Cost equals kWh multiplied by your unit rate.
Energy & Home Calculators
Use this page to estimate the cost of electricity usage from kWh and your unit rate.
Main calculator
Calculate the running cost of any electrical appliance per hour, day, month and year
A kilowatt-hour is the energy used by a 1 kW appliance running for one hour. Cost equals kWh multiplied by your unit rate.
Appliance running cost calculations usually use unit rate only. Full bill calculations also include standing charges.
energy home-calculators
Calculate the running cost of any electrical appliance per hour, day, month and year
Calculate →energy home-calculators
Calculate your estimated gas and electricity bill based on your usage and current rates
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Calculate how much you could save by switching to a smart meter and time-of-use tariff
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