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.
The national average cost of petrol is 126.5c per litre, which is also the average price in Dublin. However, diesel in the capital, at 115.6c, costs above the national average of 112.8c per litre. In Cork, the cost of petrol is slightly above the national average at 126.9c per litre, while diesel is lower, at 112.1c.