Money calculators
Appliance electricity cost calculator
Work out what an appliance costs to run per use, per day, per month and per year from its watts, hours used and price per kWh.
Runs in your browser with no account and no stored data
How it works
Pick a quick preset or type the appliance's watts, then enter how many hours per day, your price per kWh, and how many days per month it runs. Add a fixed monthly fee if your contract has one.
kWh per day = watts ÷ 1,000 × hours per day. Monthly cost = kWh per day × days × price per kWh + fixed fee. Yearly = monthly × 12.
A 2,000 W heater run 4 h/day for 30 days at 1.50 kr/kWh → 240 kWh/month → 360 kr/month, about 4,320 kr/year.
Deciding whether to replace an old appliance, weighing up a heater versus a heat pump, or checking what a single appliance contributes to your bill.
What do you want to do next?
Want the whole-home picture? Open the electricity cost calculator and enter your full monthly usage.
Want to see the whole home's bill? Open the electricity cost calculator
FAQ
Where do I find the appliance's wattage?+
Check the label on the back or bottom of the appliance, or the manual. Typical values: TV ~100 W, washing machine ~500 W, oven ~2,400 W.
What if my appliance only runs part of the time it's on?+
Many appliances cycle on and off (fridges, heaters, dryers). Use the average effective hours of full power usage per day for a realistic estimate.
Why is there a fixed monthly fee field?+
Most electricity contracts add a fixed monthly charge on top of usage. Including it shows the true monthly and yearly total.
Why does the cost per use look small?+
A single use is often cheap, but multiplied across days and months it adds up. The monthly and yearly totals show the real impact.
Can I compare two appliances?+
Yes. Run the calculator once for each appliance with its own watts, hours and days, and compare the monthly totals.