Cooking
Oven Running Cost Calculator UK
Use this calculator for electric oven running costs. Real usage varies because ovens cycle after reaching temperature.
Estimated running cost
- Per hour
- 54.27p
- Per day
- 37.99p
- Per week
- £2.66
- Per month
- £11.4
- Per year
- £138.67
Formula: oven wattage ÷ 1,000 × cooking time × electricity price.
Cost table
| Scenario | Power | Use time | Cost at 24.67p/kWh |
|---|---|---|---|
| 1,800W for 45 minutes | 1,800W | 0.75 hours | 33.30p |
| 2,200W for 1 hour | 2,200W | 1 hours | 54.27p |
| 2,500W for 90 minutes | 2,500W | 1.50 hours | 92.51p |
Formula
oven wattage ÷ 1,000 × cooking time × electricity price = running cost
For example, a 2,200W electric oven used for 1 hour at 24.67p/kWh costs 2.2 x 1 x 24.67p = 54.27p.
Ways to reduce the cost
- Cook multiple items at once when the oven is already hot.
- Use an air fryer, microwave or hob for small portions when suitable.
- Avoid opening the door repeatedly.
- Turn off slightly early where residual heat safely finishes cooking.
FAQs
How much does an oven cost per hour?
A 2.2kW electric oven costs about 54p per hour at 24.67p/kWh.
Does preheating add much?
Yes, especially for short cooking sessions.
Is a gas oven cheaper?
Gas unit rates are lower, but appliance efficiency and standing charges complicate comparisons.
Why is this an estimate?
Ovens cycle to maintain temperature rather than drawing peak power continuously.
Last reviewed 3 May 2026. Source: Ofgem energy price cap. Figures are estimates. Actual prices vary by region, supplier, tariff, payment method and meter type.