Motor MindFuel cost calculator
Work out how much fuel a trip needs and what it costs — in kilometres or miles, l/100 km, km/l or mpg.
Filled in with example values: enter your own.
Trips in Ireland
Tap a trip to use its distance (road kilometres, rounded):
Road signs here are in kilometres, but plenty of drivers still think in miles per gallon. The calculator takes either: choose mpg (UK) for Irish and British figures, which use the imperial gallon.
Tolls come on top. The M50 between junctions 6 and 7 has a barrier-free toll: without an eFlow account, pay it before 8pm the following day.
Last checked 17 October 2026 · Sources:
How it is worked out
The fuel is the distance times the consumption: with l/100 km, distance × consumption ÷ 100; with km/l or mpg, distance ÷ consumption. The cost is the fuel times the price. Real consumption changes with speed, load, traffic and weather, so the average your car’s trip computer shows gives the best estimate.