Question 1

How do I calculate the running cost of an appliance?

Accepted Answer

Multiply the appliance wattage by the hours of use, divide by 1,000 to get kWh, then multiply by your electricity unit rate. Our calculators do this automatically using your appliance type and current UK energy prices.

Question 2

What electricity rate do you use?

Accepted Answer

We use the current Ofgem energy price cap rate as the default. This is updated quarterly. You can adjust the rate on any calculator page to match your actual tariff.

Question 3

How accurate are these estimates?

Accepted Answer

These are estimates based on typical wattage ratings and average UK usage patterns. Your actual costs depend on your specific appliance model, how you use it, and your electricity tariff. We always show the assumptions used.

Question 4

What is the most expensive appliance to run?

Accepted Answer

Electric heaters are typically the most expensive household appliance to run, costing up to £1.96 per day for a 2,000W fan heater. Immersion heaters and tumble dryers are also among the most costly.

Question 5

How can I reduce my electricity bill?

Accepted Answer

Focus on the appliances that cost the most: heating, hot water, and laundry drying. Use lower temperature wash cycles, consider a heated airer instead of a tumble dryer, and switch to LED bulbs throughout your home.

How much does it really cost to run?

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