This calculator give you an indication to how much money and CO2 emissions you could save if you switched to LPG.

Your annual mileage:
Petrol Consumption (MPG):
Fuel price (per litre):	Petrol Diesel
LPG Price (per litre):
Annual Fuel Cost (£):
Annual LPG Cost (£):
Saving (£):
CO2 Saving (tonnes):

These savings are an estimation to how much money and CO2 emissions you could save if you switched to LPG. Actual savings depend on various other factors like journey type, car condition, driving style etc.