Cost to run an electric oven
Each 45 minutes use of an electric oven drawing 2,100 W costs 41.5p at 26.32p/kWh. Used 1 use a day of 45 minutes, 5 days a week, that comes to £9.01 a month.
Each use costs
41.5p a use
That is 1.58 kWh. Used as set, it comes to £9.01 a month and £108.08 a year.
On the label or in the manual.
Standby, thermostats and off-peak use
Drawn while plugged in and not running.
| Period | Cost | Energy | CO2e |
|---|---|---|---|
| A use | 41.5p | 1.58 kWh | 342 g |
| A day, on average | 29.6p | 1.13 kWh | 245 g |
| A month | £9.01 | 34.2 kWh | 7.4 kg |
| A year | £108.08 | 411 kWh | 89.3 kg |
How we calculated this
Energy is power multiplied by time: 2,100 W for 45 minutes uses 1.58 kWh each time.
The rating is an average from Centre for Sustainable Energy. An oven’s element switches on and off to hold its temperature, so once it is up to heat it draws less than this on average; the minutes here are the time at full power, which is less than the time it is on.
The starting use for an electric oven, 1 use a day of 45 minutes, 5 days a week, is where the calculator starts, not a measurement of your home: change it to how you use yours. A day is the average across the week, and a month is a twelfth of a 365-day year.
Electricity costs 26.32p/kWh. That is the published figure for the United Kingdom, 1 Oct – 31 Dec 2026, from Ofgem. Average for England, Scotland and Wales, paying by Direct Debit. No VAT on electricity from 1 October 2026 to 31 March 2027.
Standing charges are left out: you pay them whether or not the appliance runs.
Emissions use 0.217 kg CO2e per kWh, the lifecycle intensity of electricity generated in the United Kingdom in 2025, from Ember, via Our World in Data. Lifecycle means building the power stations and supplying their fuel are counted too. It is the grid’s average, not the particular power station an extra appliance brings on.
What drives the cost
An electric oven draws 2,100 W while its element is on, but the thermostat switches the element off once it reaches temperature, so over a whole meal it draws less than that. The minutes here are the time at full power, and 45 minutes of that uses 1.58 kWh.
Also called: oven, cooker oven, fan oven.
What it costs in the UK, Europe and the US
For an electric oven used as typical (1 use a day of 45 minutes, 5 days a week), at each country’s published average electricity price.
| Country | Electricity price | A use |
|---|---|---|
| United Kingdom | 26.32p/kWh | 41.5p |
| United States (average) | 18.19¢/kWh | 28.6¢ |
| Ireland | €0.4042/kWh | €0.64 |
| Germany | 0,3869 €/kWh | 0,61 € |
| France | 0,2561 €/kWh | 0,40 € |
| Spain | 0,2669 €/kWh | 0,42 € |
| Italy | 0,2966 €/kWh | 0,47 € |
| Netherlands | € 0,2558/kWh | € 0,40 |
Compared with similar appliances
| Appliance | Typical power | An hour | A year, typical use |
|---|---|---|---|
| Electric oven | 2,100 W | 55.3p | £108.08 |
| Electric hob | 2,000 W | 52.6p | £96.07 |
| Microwave oven | 1,000 W | 26.3p | £16.01 |
| Toaster oven | 1,225 W | 32.2p | £28.02 |
| Electric grill | 1,500 W | 39.5p | £10.29 |
How to spend less on it
- Cook several things together: the oven costs the same to heat whether it holds one dish or three.
- Switch it off a few minutes before the end and let the heat left inside finish the job.
- Use the microwave or a toaster oven for small portions, which heat far less space.
Questions
How much does an electric oven cost to run per hour?
At 26.32p/kWh, an electric oven drawing 2,100 W costs 55.3p for every hour of running at full power.
How much does an electric oven cost to run a year?
Used 1 use a day of 45 minutes, 5 days a week, it costs about £108.08 a year at 26.32p/kWh, or £9.01 a month.
Why does the cost per hour overstate what an oven really uses?
The rating is what the element draws while it is on, and an oven’s element switches off whenever it reaches temperature. Over a meal it is on for only part of the time, so the true average is lower than 2,100 W for the whole time.
Sources
- How much electricity am I using?, Centre for Sustainable Energy, July 2026. “Oven (2100 W)**”
- How much electricity am I using?, Centre for Sustainable Energy, July 2026. “Appliances like ovens, fridges and freezers turn themselves off when they reach the required temperature”
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