UK Energy Toolkit

Free calculator

Appliance running cost

Estimate the running cost of an appliance, without standing charges.
All calculators

Use the rating on the appliance label or manual.

From 0 to 24.

From 0 to 7.

Use the pence per kWh on your bill or supplier account.

Estimated costs

Daily · day used
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Weekly
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Monthly
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Annual
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Calculation explained

Energy per day used = watts ÷ 1,000 × hours used. Daily cost = energy × unit rate ÷ 100.

Weekly cost accounts for days used per week. Monthly and annual estimates use that weekly average over 365/12 and 365 days. No standing charge is included.

Estimates assume your rate and usage stay unchanged. Use the rate you actually pay, including VAT where applicable. Figures are rounded for display only.