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Energy Cost Comparison Calculator Gas & Electricity

In our own personal experiences of running a family home, sometimes it can be difficult to decide on the best gas and electricity supplier. Energy suppliers seem to like making it as complicated as possible to decide which is the best deal! Some suppliers can have a high daily standing charge but have a low energy price per kilowatt hour, whilst other suppliers may have little or no daily standing charge and a higher price per kilowatt hour, so which is the best deal. Please use our free gas and electricity supplier comparison calculator below to find out.

You may also wish to check how many kilowatt-hours of gas you have used over a period of time to see how much this has cost you. If your gas meter measures cubic feet or cubic metres of gas, there is a calculator below which will convert these units into kilowatt-hours of gas. For example, last week in cold weather I used 42.77 m³ of gas, our unit conversion calculator finds this to be 489 kilowatt hours, if I pay 5p per kilowatt hour for gas, this means I used 489 x 5p = £24.45 for that week.

Compare gas and electricity utility supplier quotations.  Use our calculator to choose the best combination of standing charges and kilowatt-hour (kwh) rates.  Also use our free gas unit conversion calculator, cubic foot or cubic metre conversion to kwh.

Gas
Gas Usage (Kilowatt Hours)
Standing Charge Per Day (£)
Rate per KWhr (£)
Electricity
Electricity Usage (Kilowatt Hours)
Standing Charge Per Day (£)
Rate per KWhr (£)
Gas
Gas Usage (Kilowatt Hours)
Standing Charge Per Day (£)
Rate per KWhr (£)
Electricity
Electricity Usage (Kilowatt Hours)
Standing Charge Per Day (£)
Rate per KWhr (£)
Gas
Gas Usage (Kilowatt Hours)
Standing Charge Per Day (£)
Rate per KWhr (£)
Electricity
Electricity Usage (Kilowatt Hours)
Standing Charge Per Day (£)
Rate per KWhr (£)
Gas
Gas Usage (Kilowatt Hours)
Standing Charge Per Day (£)
Rate per KWhr (£)
Electricity
Electricity Usage (Kilowatt Hours)
Standing Charge Per Day (£)
Rate per KWhr (£)
Gas
Gas Usage (Kilowatt Hours)
Standing Charge Per Day (£)
Rate per KWhr (£)
Electricity
Electricity Usage (Kilowatt Hours)
Standing Charge Per Day (£)
Rate per KWhr (£)

Gas Unit Conversion Calculator

Convert Cubic Feet or Cubic Metres of gas in to Kilowatt Hours (KWhr) to match the energy units on your energy bill
Step 1 Subtract your previous meter reading from your current reading to give the number of units used over the billing period.

Step 2 If you have an Imperial gas meter, convert your units into Cubic Metres of gas consumtion as below
Units Consumed  Cubic Feet
 
  
If you have the Cubic Metres consumtion figure, please enter it here or enter the figure calculated above Cubic Metres

Step 3 Convert the volume of gas consumed into its calorific value (the amount of heat energy available)
Calorific Value
megajoules per cubic metre (MJ/m3. This figure should be provided on your energy bill and is usually between 39 and 41 MJ/ cubic Metre)
  
Total Calorific Value

Step 4 Final Conversion into Kilowatt Hours Consumption figure (MJ divided by 3.6)

Step 5 The number of Kilowatt hours used is then multiplied by the price you pay per Kwh to find you total energy cost