How many miles should five pound in petrol get you?

The fuel efficiency you can achieve with five pounds of petrol depends on the price per gallon and your vehicle's miles per gallon (MPG) rating. For example, if petrol costs £1.50 per litre and there are about 4.54 litres in a gallon, five pounds would buy roughly 1.5 gallons. If your vehicle averages 30 MPG, that would give you about 45 miles. However, this can vary significantly based on your car's efficiency and driving conditions.