Comparisson annual usage - why is it incorrect on the Money Saving website, need some help please

Mr.Plinky

Hi

Really need some guidance. Im trying to do a comparisson on your website (the energy shop I think), however Igloo provide the usage in m3. Ive tried the conversion on another money savings website as I can't find anything here. 
Igloo provide the readings/usage in m3 so for last 12 months meter reading is from 5771 to 4160 usage 1611m3.
The conversion Ive aquired is in the region of 51803kwh and all the estimates are telling me my monthly bill is going to be £120+ higher. This really doesn't seem correct unless gas has shot up in cost. Im wondering where Ive gone wrong or. The formula they use is:

1. Multiply by the volume correction factor (1.02264). So 1661 * 1.02264 = 1698.60504
2. Multiply by calorific value (40.0).67944.2016
3. Divide by kWh conversion factor (3.6).18873.3893333333

I think the first is imperial and the second is metric. Should it be metric? 
As a featur request would be nice if we could input m3. Would help block the confusion.

From my igloo account
Electric

29 Aug 2019

65947kWh

28 Aug 2020

71520kWh

So 5573kwh..easy

Gas

29 Aug 2019

4160m3

28 Aug 2020

5771m3

so 1611m3
Currently im paying £109 pcm and last bill was £79. Igloo have announnced increases so time to check and jump ship.
The cheapest comparrison is bringing up a bill of £199 pcm on imperial and £124 on metric
Please help. Confused!

Thanks
Mr P

Robin9

1611m3 is about 18,000 kWh (use 11.2 to convert)

You can't enter m3 because that is only part of the equation, the conversion also needs calorific value and that varies monthly, even daily

Gerry1

https://www.businessenergy.com/business-gas/gas-bill-calculator/

Mr.Plinky

Robin9 said:

1611m3 is about 18,000 kWh (use 11.2 to convert)

You can't enter m3 because that is only part of the equation, the conversion also needs calorific value and that varies monthly, even daily

Thanks...Igloo not being customer/market friendly or do they all do this? Bit odd. Regardless.
Resulst and thank you.

Talldave

Since you're a high user of both gas and electricity, check out separate suppliers as that will most likely give you the cheapest outcome. 

Mr.Plinky

Talldave said:

Since you're a high user of both gas and electricity, check out separate suppliers as that will most likely give you the cheapest outcome. 

Ive never ever thought of that, I have no idea where I got the impression doing bothin house would potentially be more expensive. Never make it easy for customers, makes me want to swap just for the sake of it....
Thank you I will have a dig and play with the figures.