In an earlier contribution to this discussion,
Golan wrote:

i want to know how much i am going to pay for gas.

is there a Calculator that i can put my old reading and my new one ?

Thanks

Your gas meter measures the *volume* of gas which you use - either in cubic
feet or cubic metres, depending on the meter. You pay for it in
*kilowatt_hours* (same as electricity).

On order to work out the cost, you need to:
* convert the meter reading into kW.Hrs
* multiply by the cost per kW.Hr

As others have said, the factors for converting meter reading into kW.Hrs
(including the calorific value of the gas, which varies from month to month)
should be shown on a recent gas bill - probably on the back.

Work through an existing bill, and make sure you get the right answer. Then
apply the same principles to your current readings.

Don't forget that, to get the total cost, you'll have to add an appropriate
amount of standing charge or - if on a tariff with no standing charge -
you'll need to take account of the fact that the first so many units per
quarter are dearer than the subsequent units.
--
Cheers,
Roger
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