Find the official consumption
Use annual kWh or a labelled cycle figure for the exact model and market. Do not borrow a value from a similar-looking variant.
Appliance running-cost calculator / UK
Calculate appliance running costs from kWh.
Enter the annual energy figure and the electricity unit price from your tariff. The calculator shows yearly and ownership-period cost without hidden “typical household” assumptions.
THE METHODkWh/year × price/kWh= annual electricity cost
Estimated energy cost£44.65 / year
£223.24 over 5 years at the rate you entered.
Starting rate: Ofgem average default-tariff electricity unit rate · effective 2026-07-01 to 2026-09-30. Official rate source ↗ · checked 2026-08-22. Standing charges are excluded; replace the rate with your tariff.
01Use the label figure
Look for annual energy consumption in kWh/year.
02Use your tariff
Enter the unit rate only; standing charges are excluded.
03Treat it as an estimate
Room temperature, settings and use can change real consumption.
Real Atlas records
Same tariff. Different energy use.
Examples use £0.2611/kWh. Change the calculator above for your home.
HOW TO COMPARE APPLIANCE RUNNING COSTS
Use the same unit, test basis and period.
The calculator accepts an annual kWh figure. If a label states kWh per 100 cycles, divide by 100 and multiply by the number of cycles you expect to run each year before entering the result.
Use your electricity unit rate
Copy the pence-per-kWh figure from your tariff. The starting Ofgem rate is a dated reference and remains editable.
Keep standing charge separate
The household standing charge continues whether or not you own this appliance, so it is excluded from the model comparison.
Allow for real use
Programme choice, loading, settings, room temperature and maintenance can move actual consumption away from a controlled label result.