*Total annual mileage :
miles
*Current MPG :
mpg
*Petrol cost per litre :

pence/litre

*LPG cost per litre :
pence/litre
 
Petrol cost per annum :
LPG cost per annum :
Saving per annum :
Fields with * are required

Heres a typical example based on a Ford Mondeo 2.0 Litre Saloon

Total Annual Mileage = 20000 miles

Petrol Consumption = 32 mpg

Petrol price = 112p/litre

Gas price = 56p/litre

Annual cost of petrol = £3182

Annual cost of Gas = £1768

Total annual saving is £1414 per year

Total saved over 3 years is £4242

This calculator is intended as a guide and assumes a 10% reduction in mpg when running on LPG. Actual figures may vary