Trip Fuel Cost Calculator 2026

Fuel cost is calculated by multiplying distance by average consumption and fuel price. Formula: usage (l) = distance (km) × consumption (l/100km) / 100, and cost = usage × price per litre. For a 300 km route, 7 l/100km and PLN 6.50/l the cost is 300 × 7 / 100 × 6.50 = PLN 136.50.

Yes. When you select "round trip = yes" the calculator doubles the entered distance, since you input the one-way route length. For a 300 km one-way route the total distance becomes 600 km, and the fuel cost doubles accordingly.

Average consumption depends on car type and driving style. Small city cars use about 5–6 l/100km, compact diesels 4–5 l/100km, petrol C-segment cars about 6–8 l/100km, and larger SUVs and petrol engines 8–12 l/100km. On the highway consumption is usually lower than in the city.

Indicative fuel prices in Poland in 2026 are about PLN 6.30–6.70/l for Pb95 petrol, PLN 6.40–6.80/l for diesel and PLN 3.20–3.80/l for LPG. Prices vary by region, station network and the current oil market situation.

The calculator divides the total fuel cost by the number of people in the car, giving the cost per person. This is handy for shared trips or carpooling. With 4 people and a cost of PLN 136.50 each person pays about PLN 34.13.

Yes, highway consumption is usually 20–40% lower than in the city. In the city the engine idles more often, and frequent stopping and starting increases usage. On the motorway at high speeds (over 130 km/h) consumption rises again due to aerodynamic drag.

The main ways are: keeping a steady, moderate speed (about 90–110 km/h), correct tyre pressure, removing unnecessary load and roof boxes, smooth driving without sharp acceleration, and refuelling at cheaper stations away from motorways.

This calculator is for combustion cars, where you enter consumption in litres per 100 km. For electric cars use the dedicated EV range calculator, which works with usage in kWh/100 km and the price of electricity instead of fuel price.

Yes, estimating fuel cost helps plan the trip budget, compare driving against public transport, and fairly split costs on shared journeys. It is also useful for settling business travel expenses.

The result is indicative and based on the consumption and fuel price you provide. Actual usage depends on road conditions, weather, vehicle load, driving style and traffic. For greater accuracy enter the real consumption from your trip computer on similar routes.