Electricity Cost Calculator
Calculate the daily electricity cost of any device by entering its wattage, usage hours, and your rate.
Electricity Cost Calculator
Daily Cost
€2.00
Cost Breakdown
€2.00
per day
€14.00
per week
€60.88
per month
€730.50
per year
How we calculate this
Formula: Daily Cost = (Watts / 1,000) x Hours x Rate
To calculate daily electricity cost, divide the wattage by 1,000 to get kilowatts, multiply by the hours of daily use, then multiply by your electricity rate. For example, a 1,000W device used for 8 hours at EUR 0.25/kWh costs (1,000/1,000) x 8 x 0.25 = EUR 2.00 per day. Multiply by 30.44 for monthly cost or 365.25 for annual cost.
Understanding the Electricity Cost Conversion
Calculating the electricity cost of individual devices is the first step toward understanding and controlling your energy bill. Most people are surprised to learn which appliances cost the most to run. It is not always the most powerful devices that cost the most; it is the ones that run the longest.
Consider this comparison: a 2,000W electric kettle used for 15 minutes a day costs about EUR 0.13/day at EUR 0.25/kWh. Meanwhile, a 150W television running for 6 hours costs EUR 0.23/day, and a 100W computer running for 10 hours costs EUR 0.25/day. The kettle has the highest wattage but the lowest daily cost because it runs for such a short time.
The biggest electricity consumers in a typical European household are usually: electric heating or air conditioning (if used), water heating, cooking appliances, refrigerators and freezers (because they run 24/7), washing machines and dryers, and lighting. By calculating the cost of each device, you can identify where your money goes and make informed decisions about upgrading to more efficient models, changing usage patterns, or investing in alternative energy sources like solar panels.
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