Appliance running costs calculator

See what each of your appliances costs to run per year at your electricity price.

ApplianceWattsHours / dayNumber£ / year
Fridge£346
Freezer£0
Electric oven£96
Induction hob£180
Microwave£19
Dishwasher£130
Washing machine£86
Tumble dryer£0
Electric heater£0
Heat pump£0
Air conditioning£0
Immersion heater£634
TV£38
Desktop computer£0
Laptop£23
Broadband router£28
LED bulbs£38
Estimated cost per year£1,619
Per month£133
Yearly use6,151 kWh

Excludes the standing charge. Wattages are averages: a fridge or immersion heater does not run at full power all the time, so real use is often lower.

How running costs are worked out

Energy used (kWh) = power (watts) × hours of use ÷ 1,000. A 2 kW heater on for 3 hours uses 6 kWh, which costs about £1.58 at the price cap.

Heating, tumble dryers and immersion heaters usually cost the most to run; LED bulbs and routers cost very little.

Frequently asked questions

Where do I find an appliance’s wattage?

On the rating plate (usually on the back or underneath) or in the manual. For white goods, the energy label shows the yearly use in kWh.