Electronics
TV Electricity Cost Calculator UK
Estimate electricity cost for LED, OLED and large-screen TVs.
Estimated running cost
- Per hour
- 2.47p
- Per day
- 12.34p
- Per week
- 86.35p
- Per month
- £3.70
- Per year
- £45.02
Formula: TV wattage ÷ 1,000 × viewing hours × electricity price.
Cost table
| Scenario | Power | Use time | Cost at 24.67p/kWh |
|---|---|---|---|
| Small LED TV, 50W for 5 hours | 50W | 5 hours | 6.17p |
| Typical TV, 100W for 5 hours | 100W | 5 hours | 12.34p |
| Large TV, 180W for 5 hours | 180W | 5 hours | 22.20p |
Formula
TV wattage ÷ 1,000 × viewing hours × electricity price = running cost
For example, a 100W television used for 5 hours at 24.67p/kWh costs 0.1 x 5 x 24.67p = 12.34p.
Ways to reduce the cost
- Use energy-saving picture modes if picture quality remains acceptable.
- Reduce brightness in darker rooms.
- Turn off consoles and set-top boxes when not used.
- Check standby settings for connected devices.
FAQs
How much does a TV cost to run all day?
A 100W TV for 12 hours costs about 30p at 24.67p/kWh.
Do bigger TVs use more power?
Usually, though panel type and brightness settings also matter.
Does standby use much?
Modern TVs are usually low, but connected boxes and consoles can add more.
Is OLED more expensive?
It depends on brightness, content and model efficiency.
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.