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Energy Bill Calculator

Estimate your gas and electricity costs based on your usage and the latest Ofgem price cap. See your projected monthly and annual bill and compare it to the UK average.

Your Energy Usage

per year

Your Tariff Rates

Your Estimated Bill

Estimated Monthly Cost

£128.22

Estimated Annual Cost

£1,538.69

Annual Cost Breakdown

Electricity Cost
£772.34
Gas Cost
£766.35

Comparison to UK Average

Your estimated annual bill is £102.31 lower than the typical UK household bill of £1,641.00.

Understanding Your Energy Bill

An energy bill in the United Kingdom can seem complex, but it is primarily composed of a few key elements. The two most significant are the unit cost per kilowatt-hour (kWh) and the daily standing charge. The unit cost is the price you pay for the actual energy you consume, while the standing charge is a fixed daily fee that covers the cost of getting the energy to your property, including network maintenance and administrative costs. These charges are capped for most households by the energy regulator, Ofgem.

The Ofgem price cap is a crucial factor influencing most UK energy bills. It sets a maximum price that energy suppliers can charge for each unit of gas and electricity, and for the daily standing charge. This cap is reviewed and updated every three months to reflect changes in wholesale energy prices and other costs. Our calculator uses the latest Ofgem rates as a default to provide a relevant and timely estimate, helping you understand what a fair price looks like in the current market.

Your total bill is a straightforward calculation: your electricity usage in kWh is multiplied by the electricity unit rate, and your gas usage is multiplied by the gas unit rate. The standing charges for both fuels are then added for the billing period. Understanding this breakdown is the first step towards managing your energy costs. By identifying how much you use and what you pay, you can make informed decisions, such as improving your home's energy efficiency or comparing tariffs to find a better deal. Tools like our electricity cost calculator can further break down costs by appliance.

Frequently Asked Questions