Electricity Cost Calculator

Understanding how your daily habits contribute to your electricity bill is the first step toward managing and reducing your energy expenses. The Ofgem energy price cap sets a limit on what suppliers can charge per unit. The cost of running an electrical  appliance is determined by three main factors: its power consumption in watts, how long you use it for, and the price your energy supplier charges per kilowatt-hour (kWh).

An appliance's power rating is measured in watts (W). A higher wattage means more power is consumed. To calculate energy usage, this is converted to kilowatts (1 kW = 1000W) and multiplied by the hours of use. For example, a 2000W oven used for one hour consumes 2 kWh of energy. If your electricity rate is 24.5p per kWh, that hour of baking would cost you 49p. This Calculator Site tool automates this process for you, even allowing you to combine multiple appliances for a comprehensive overview.

Wattage can vary significantly between models. Always check the label on your specific appliance for an accurate number. The figures below are typical estimates.

For a broader view of your household expenses, you might find our Household Budget Calculator or Cost of Living Calculator useful.