For other uses, see Flea (disambiguation). Fleas are small flightless insects that form the order Siphonaptera. As external parasites of mammals and birds, they live by consuming the blood of their hosts. Adults are up to about 3 mm (0.12 in) long and usually brown.
Numbeo allows you to calculate gas prices and gas consumption using information about: 1  fuel efficiency (car consumption for 100km or miles per gallon). 2  distance you are planning to travel (or cities which you intend to visit on your journey).y using car consumption and travel distance, our tool shows you approximately how much gasoline (petrol) your car will consume, an approximate price and also estimates how much will your car depreciate during that trip.
Unleaded Petrol Prices. The current average price for Unleaded Petrol in pence per litre is: This is based on the average price of Unleaded sold around the UK over the last 10 days. If you would like to use our petrol pricing information then please contact us. The chart below gives the average price of unleaded petrol for the last few years.