Find out exactly how much your home appliances cost to run. Enter the wattage, daily usage and your electricity tariff to see daily, monthly and yearly energy use and costs — free, private, and with no sign-up.
Tip: find the wattage on the appliance rating label, usually near the power cord or in the manual.
How to Use
- Choose a common appliance from the list to fill in its typical wattage, or keep “Custom appliance” and enter your own wattage.
- Enter how many hours per day the appliance runs and on how many days per month you use it.
- Set your currency symbol and electricity rate per kWh, exactly as shown on your energy bill.
- Read the live results for daily and monthly energy use, plus the daily, monthly and yearly costs.
Key Features
- Typical wattages built in — one click fills in 12 common household appliances, from LED bulbs to immersion heaters.
- Live calculations — every result updates the moment you change a value.
- Full cost breakdown — daily, monthly and yearly costs based on your own tariff.
- Any currency — set your own symbol and rate per kWh.
- 100% private — everything is calculated in your browser and never sent to a server.
FAQs
Is this appliance energy calculator free to use?
Yes. The calculator is completely free with no sign-up, no usage limits and no hidden charges.
Where do I find my appliance’s wattage?
Check the rating label on the appliance, usually near the power cord, on the back panel or inside the door. It is also listed in the instruction manual and often on the manufacturer’s website.
Does the result include standing charges?
No. The calculator covers the energy the appliance itself uses. Your bill’s daily standing charge applies regardless, so the true total will be slightly higher.
Is my data uploaded or stored anywhere?
No. All calculations happen locally in your browser using JavaScript, so your inputs never leave your device.
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