Costs for 0.283 €/kWh
· Eurostat 2026 H1
Electricity cost calculator
Enter the power of a device in watts and how long it runs. The result uses the electricity price in the bar above: your country’s household price or your own tariff.
Questions
How do I convert watts into kWh?
Multiply the power in watts by the hours of use and divide by 1,000. A 100 W device running for 10 hours uses 1 kWh.
Where do I find the wattage of a device?
On the rating plate or in the manual. That figure is often the maximum; many devices use less most of the time, so a plug-in energy meter gives a more realistic value.
Why use the energy label instead?
For labelled appliances the label already gives the consumption under standard conditions, which is easier to compare than a peak wattage. Every model page on this site uses it.