The Citizens Advice consumer service can assist you with this and provide independent advice on energy supply. Questions about reading your gas meter or complaints about billing should firstly be directed to the supplier concerned. You may also have a standing charge or one price for the first ‘X’ number of units and a lower price for the remaining units. The number of kWh is then be multiplied by the price per kilowatt hour as detailed on your gas bill. Again, this factor is prescribed in the above regulations. Step 5įinally the figure is converted to kWh by dividing by 3.6. This corrects the volume of gas to account for temperature and pressure (as gas expands and contracts). The figure is then multiplied by 1.02264 as prescribed in the above regulations. Gas transporters are required to maintain this figure within 38 MJ/m³ to 41 MJ/m³ as figures outside of this range will cause problems with gas burning appliances. Calorific values vary and the figure quoted on your bill (eg 39.5 megajoules per cubic metre ( MJ/m³)) will be an average of the gas supplied to your property (the regulations explain how this is calculated). This figure is then multiplied by the calorific value of the gas which is a measure of the available heat energy. This step is not required for metric meters as they are read directly in cubic metres. The conversion factor from cubic feet to cubic metres is 0.0283 therefore:įor imperial meters the reading (in hundreds of cubic feet) is therefore multiplied by 2.83 to convert to cubic metres (if the reading to the supplier was provided in cubic feet then this should be multiplied by 0.0283). A 750ml bottle of red, white or ros wine (ABV 13.5) contains 10 units. Convert what quantity From: atmosphere standard atmosphere technical attobar attopascal bar barad barye centibar centihg centimeter of mercury 0 ☌ centimeter of water 4 ☌ centipascal centitorr decibar decipascal decitorr dekabar dekapascal dyne/square centimeter exabar exapascal femtobar femtopascal foot of air. Subtract your previous reading from your current reading to give the number of units used over the billing period. strength (ABV) x volume (ml) 1,000 units For example, to work out the number of units in a pint (568ml) of strong lager (ABV 5.2): For a quicker method, use Alcohol Change UK's unit calculator. All conversion factors are prescribed in the Gas (Calculation of Thermal Energy) Regulations 1996 ( SI 1996/439). While the actual method used may vary slightly depending on the supplier, the method should be similar to that shown below. Information found on the gas bill itself will generally explain how the bill has been calculated.
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