Road Trip Fuel Cost Splitter
Calculate total road trip fuel cost and split it fairly between passengers based on distance, fuel efficiency, and current fuel prices.
Results
What is it?
The fuel cost splitter calculates how much petrol or diesel a road trip consumes using your vehicle's fuel efficiency and the trip distance, then divides the cost equally among all passengers. It is the fairest baseline for carpooling cost sharing.
How to use
1. Enter the total trip distance in km and your vehicle's fuel consumption (L/100km � find in your car manual or use a fuel tracker app). 2. Enter the current fuel price per litre and the number of people sharing the trip. The calculator outputs total fuel required, total cost, and cost per person.
Example scenario
A 500km road trip in a car using 10L/100km at $1.80/L: Fuel needed = 50L. Total cost = $90. With 3 passengers, each pays $30. Compare this to flying or renting a car � carpooling is almost always the cheapest option for groups of 3+.
Pro tip
For fairness, also split toll fees, parking, and potential wear-and-tear costs (the IRS mileage rate of $0.67/mile = ~$0.42/km covers all vehicle costs). Apps like Splitwise or TripSplit automate cost tracking. On long hauls, the fastest route is rarely the most fuel-efficient � a motorway cruise at 100 km/h uses 15�20% less fuel than stop-start city driving.