Free Car Trip Cost calculator with clear step-by-step results.
Fuel used is distance times consumption per hundred kilometres, priced at the pump and topped up with tolls and parking. Splitting the result across everyone in the car is what turns it into a number passengers will actually settle up on.
Fuel used
Litres = distance km x (L/100km) / 100
Cost per person
Per person = (fuel cost + tolls) / people
For settling up between friends, no - fuel and tolls is the norm. For a true cost of driving, add roughly 8-15 cents per kilometre for tyres, servicing and depreciation.
Divide 235.2 by your US mpg to get L/100km - 32 mpg is about 7.35 L/100km.