Calculate how much each person should pay when carpooling, based on distance, consumption, fuel price, tolls and number of people in the car.
The fuel cost is calculated from distance, consumption (liters per 100 km) and the price per liter. Any tolls for the trip are added before the total cost is split evenly among everyone in the car, including the driver — the most common way to split carpool costs.
The most common approach is to split the cost equally among everyone in the car, including the driver — the car would have been used anyway, and everyone benefits from the trip. Some instead let the driver ride free as compensation for using their own car and wear and tear, but that's an agreement you make among yourselves.
A standard mileage reimbursement rate also includes depreciation, insurance and maintenance, not just fuel — it fits better if you want a more complete cost split, while this calculator shows the pure fuel cost.
It's normally listed in the vehicle registration or owner's manual as "combined consumption." Real-world consumption can deviate somewhat from the stated figure, especially in city driving or at high speed.