Heating costYearly cost of two heating options.Loading…
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Estimate how much electricity an appliance uses and its daily, monthly and yearly running cost. Enter your own price per kWh.
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watts from the appliance label
hours and days
use your bill or tariff
monthly and yearly
energy = power in kW × running time × appliance countcost = energy in kWh × price per kWh1 kW = 1000 WWorked example
A 1,000 W appliance runs 4 hours a day for 30 days at £1.20/kWh.
Check the rating plate, manual or product specification. Maximum rated power may exceed average use.
Use the variable energy cost from your bill divided by kWh used, or the price in your tariff.
No. Fridges, air conditioners and thermostatic devices cycle, so rated power gives an upper estimate.
Available actions follow the calculator privacy policy. Sensitive inputs are never added to the page URL; an explicitly saved scenario stays local.
No. The calculation runs locally in your browser and is not stored in a database.
Estimate the running cost of appliances, computers, electric heating and air conditioning without connecting to an energy supplier.
