Electricity Cost Calculator
Calculate the daily, monthly and yearly running cost of an appliance from its wattage and usage.
Work out how much an appliance costs to run based on its wattage, hours of use and your electricity price.
How to use it
- 1Enter the appliance's power in watts.
- 2Enter hours used per day and days per period.
- 3Enter your price per kWh to see the running cost.
Appliance usage
Enter the appliance wattage, how long it runs and your electricity price.
Result
Cost per month
€37.80
- Energy used per day
- 4.50 kWh
- Cost per day
- €1.26
- Cost per year
- €459.90
Check the wattage on the appliance label or plug it into a smart meter for the most accurate reading.
Frequently asked questions
- Where do I find an appliance's wattage?
- Check the rating label, manual or a plug-in energy monitor.
- What is a kWh?
- A kilowatt-hour is the unit your electricity bill is priced in — 1,000 watts running for one hour.
- Does it include standby power?
- No, enter only the active usage hours; add a separate calculation for standby draw if needed.
Something wrong with this tool or its numbers?
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