Electricity Cost Calculator
Calculate the running cost of an appliance from its wattage and usage.
That old fridge, the space heater, the always-on gaming PC — each quietly adds to your electricity bill, but by how much? The answer comes from three numbers: the appliance's power draw in watts, how long it runs, and your electricity rate per kilowatt-hour.
Enter the wattage, daily hours of use and your rate, and this calculator shows the daily, monthly and yearly running cost, plus the energy consumed. It's the fastest way to spot the appliances worth replacing or unplugging.
How to use Electricity Cost Calculator
- 1
Enter your details
Fill in the fields above.
- 2
See the result
It updates instantly.
- 3
Adjust to explore
Change any value to compare.
Features
- Instant results
- Runs privately in your browser
- Clear, itemized output
Frequently asked questions
Common mistakes to avoid
- Entering values in inconsistent units.
- Treating an estimate as an exact figure.
Get new tools in your inbox
One email a month with new tools, guides, and updates. No spam, unsubscribe anytime.