Gas Bill Calculator UK

Welcome to Gas Bill Calculator, the UK’s best online energy bill calculator for working out gas bill costs from meter readings. Just enter your meter readings from your bill or gas meter below, hit calculate and you’ll be taken to the ‘your bill’ page to get a detailed breakdown of gas usage and costs.

The Gas Bill Calculator ‘your bill’ page provides accurate KWh cost calculation and an advanced breakdown showing your gas tariff comparison rate, effective unit rates and daily KWh gas usage – A great way to see how much gas you are using per day, month or quarter.

Our Gas Bill Calculator helps with working out your gas bill from meter readings, it also provides tips on how to reduce gas bills, information on UK average gas bills per month and much more.

If you need to work out gas bills using a tiered unit cost, please use our tiered version gas bill calculator, it's a bit older but still gets the job done.

Use the 3 boxes below to enter your various charges or, click ‘supplier and tariff’ below to auto-fill charges

Don't change any of these figures unless you know what they mean.
Many of these figures can be found on your bill.

About Gas Bill Calculator

We are Gas Bill Calculator UK – An independent, self-funded online energy bill calculator established to help people to work out their gas bills, better understand how their gas bills are calculated and to save money on gas and energy where possible.

Established in 2011, we started out with just a single page website working out KWh usage and have now grown and improved our website to include not just the standard estimator but also provide more advanced billing information, average consumption info and much more.

In 2019 we're continuing to update and improve our energy calculators.

Click here to learn more about us

Reducing Your Gas Bills

It is possible to save money on your energy bills by prompt payment or by choosing to pay by direct debit - more than half of consumers pay this way.

Do your own meter readings. This will ensure that your supplier charges you for the actual amount of energy you have used rather than estimating your bill.

Look into energy efficiency measures, such as loft insulation, or a more efficient boiler. Some of the environmental programmes that you pay for through your bill mean that your supplier can offer you help and advice. So take advantage of this by asking your supplier what they can do to help.

View figures for the average gas bill