How does the electricity cost calculator work?

This electricity cost calculator works out how much electricity a particular electrical appliance will use and how much it will cost. This calculator is a great way of cutting back on your energy use and saving on your electricity bills. How to use this calculator: Input what you pay for energy per kilowatt hour.

How much does 40 watts / 1000 kWh cost?

40 watts / 1,000 × 12 hours × $.15/kWh = $.072 This electricity cost calculator works out how much electricity a particular electrical appliance will use and how much it will cost. This calculator is a great way of cutting back on your energy use and saving on your electricity bills

How does the energy calculator work?

Our energy calculator allows you to calculate the running cost of any electrical items using a range of electricity tariffs. Simply enter the amount of electricity the appliance uses (in Watts or KiloWatts) and the length of time it is used (in Hours or Minutes), then instantly see the cost.

How do I estimate electricity usage and cost?

Use the calculator below to estimate electricity usage and cost based on the power requirements and usage of appliances. The amount of time and power that each appliance is used varies significantly between households, so for the best results, adjust the usage for each appliance to most accurately reflect your personal usage.

How do you calculate energy use per kilowatt hour?

Energy use in kilowatt-hours is determined by multiplying the number of hours appliance operates by its rated power in kilowatts. We then multiply the electricity cost per kilowatt hour to calculate what it costs to keep the appliance running. Thus, we use the following formula:

How do you calculate kWh?

To calculate how much a device or appliance costs to run, simply multiply the amount of energy used (kWh) by the unit cost of one kWh. If an oven uses 2000 watts of electricity, or 2 kW, and you use the oven for 2 hours, then you will have used 4kWh. If the unit cost of 1 kWh is 35p for example, multiply 35p by 4.