This calculator is free to use. To use it, just follow these easy steps:

1. Add the wattage of your appliance in the first box.
2. Add into the second box how many hours you run the appliance on average per day. If it’s an appliance that is on continuously (like a fridge), then put 24.
3. The third box has the average cost of a unit of electricity in the UK. If you know your exact fugure (usually found in your utility bill), add this instead.

The result will be shown below the input boxes once all are filled in.

Please note: It may take a few seconds for the application to load, so please wait until you see the box below showing the input fields. Thank you.