CostToRun.uk

What does it cost to run your appliances?

Work out what any appliance really costs — per hour, day, month and year — using the latest UK electricity price cap. Free, instant, no sign-up.

Price updated 9 July 2026 · Q3 2026 (Jul–Sep)

Try the calculator

About £4.25 a month · £51.05 a year

Per hour39p
Per day20p
Per week98p
Per month£4.25
Per year£51.05

Uses about 196 kWh a year. Prefilled with the Ofgem cap of 26.11p/kWh — edit any box for your own figures.

Open the full calculatorBrowse all appliances

Popular appliances

Air fryer

1,500 W typical

~£4.25/mo

Tumble dryer

2,500 W typical

~£11.35/mo

Oil-filled radiator

1,500 W typical

~£47.65/mo

Hot tub

1,500 W typical

~£59.56/mo

Immersion heater

3,000 W typical

~£35.74/mo

Electric oven

2,500 W typical

~£11.35/mo

Dehumidifier

350 W typical

~£16.68/mo

Electric kettle

3,000 W typical

~£3.57/mo

Browse by room

Kitchen appliances

Ovens, air fryers, kettles and the everyday kitchen kit that quietly adds up on your electricity bill.

Heating & hot water

Electric heaters, radiators and immersion heaters — usually the biggest single line on a winter bill.

Laundry & drying

Washing, tumble drying and the cheaper ways to dry clothes without a tumble dryer.

Home & leisure

Televisions, consoles and hot tubs — the running costs people most often underestimate.

Everyday devices

The small always-on and quick-use devices: routers, hair dryers and desktop PCs.

Cheaper to run… which one?

Air fryer vs Electric oven

The classic question. An air fryer usually wins for small portions; the oven catches up when you fill it.

Tumble dryer vs Heat pump tumble dryer

Same job, very different power. Heat pump models use roughly a third of the electricity per load.

Tumble dryer vs Heated clothes airer

The cheapest way to dry a load without a tumble dryer, if you have the time and space.

Oil-filled radiator vs Fan heater

For sustained warmth a thermostatic oil-filled radiator usually beats a full-power fan heater.

Halogen heater vs Oil-filled radiator

Spot-heating one person vs warming a whole room — the right answer depends on what you need.

Dehumidifier vs Tumble dryer

Drying laundry indoors with a dehumidifier can undercut a conventional dryer per load.

How it works

Electricity is billed per kilowatt-hour (kWh). We take an appliance's power in watts, multiply by how long you use it, and multiply by the price per kWh. Every price on this site uses the Ofgem cap of 26.11p/kWh — and you can type in your own rate any time. See the full method.