Compare two appliances
Enter power, usage and a tariff for both devices. Results update as you type.
Estimated electricity costs
Important: Results depend on your entered assumptions. Actual power draw, energy consumption, tariffs and usage vary. Standing charges are excluded; these are estimates, not measured bills.
How it works
Energy used (kWh) = power (watts) ÷ 1,000 × hours × average load factor. Cost = kWh × unit price. Weekly cost uses the number of sessions entered; annual cost assumes 52 weeks.
Before relying on your estimate
Choose comparable tasks and realistic hours of use. An appliance that runs longer may still use less energy overall.
Which electricity price should I enter?
Your unit rate in pence per kWh appears on your energy bill or tariff information. The starting value is illustrative and should be replaced with your actual rate. Visit Ofgem for official energy price information.