Calculate your fuel costs for any trip or monthly driving. Compare petrol, diesel, LPG and electric costs. Supports EUR, USD, GBP, RON, HUF, CZK, PLN.
A fuel cost calculator estimates how much a trip or period of driving will cost based on distance, your vehicle's fuel consumption, and the price of fuel. It works for petrol, diesel, LPG, or electric vehicles, making it useful for budgeting road trips, commutes, or comparing running costs between cars.
13,50Β β¬
Trip Cost
13,50Β β¬
Cost per 100 km
7.5 L
Fuel needed
Last updated:
Fuel Calculator
The formula is straightforward: Cost = (distance Γ· 100) Γ consumption Γ price per litre. For example, a 250 km trip in a car consuming 7.5 L/100km at β¬1.85/L costs β¬34.69. This calculator applies that formula in real time and also factors in additional costs such as tolls, parking fees, and depreciation.
For accuracy, it is important to use your vehicle's real-world fuel consumption β manufacturer WLTP figures are typically 10β20% lower than actual consumption in mixed driving. Measure your true consumption by noting the odometer at a full tank and dividing litres consumed by distance driven before the next fill-up.
Monthly Costs
The average household with one car drives approximately 1,200β1,800 km per month. At 1,500 km/month, 7 L/100km, and β¬1.85/L, the monthly fuel bill is around β¬194 β exceeding β¬2,330 per year. Two-car households effectively double that figure.
Drivers covering longer distances β sales reps, commuters, or long-haul travellers β can easily exceed β¬3,000ββ¬5,000 annually on fuel alone. For trucks consuming 25β35 L/100km over 10,000 km/month, monthly costs can reach β¬4,600ββ¬6,500.
Comparison
Using average European prices, the cost per 100 km is: Petrol (A95) β 7 L Γ β¬1.85 = β¬12.95; Diesel β 5.5 L Γ β¬1.75 = β¬9.63; LPG β 9.5 L Γ β¬0.85 = β¬8.08; Electric β 18 kWh Γ β¬0.22 = β¬3.96.
LPG offers genuine savings of 35β40% over petrol but requires an aftermarket installation costing β¬500ββ¬1,500 and reduces boot space. Electric vehicles have the lowest per-km cost, but the higher purchase price must be factored into total cost of ownership.
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Also see the loan calculator, percentage calculator, and the mortgage calculator.
Reducing Consumption
Driving style has a larger effect on real-world fuel consumption than most people expect. Aggressive acceleration and braking can increase consumption by 15-30% compared to smooth, anticipatory driving, and maintaining a steady speed on highways (rather than frequent speed changes) improves efficiency significantly.
Tire pressure is one of the most overlooked factors: underinflated tires increase rolling resistance and can raise fuel consumption by 1-2% for every 0.2 bar below the recommended pressure. Removing unnecessary roof racks or boxes when not in use, and avoiding excessive idling, are two other simple changes with a measurable effect on the numbers this calculator produces.
Practical Tips
Tyre pressure
Keep tyres inflated to the recommended level β being 0.3 bar low increases consumption by approximately 2%.
Smooth driving
Avoid harsh acceleration and heavy braking β this alone can cut consumption by up to 15%.
Cruise control
On motorways, maintaining a steady speed saves 5β10% over manual throttle adjustments.
Air conditioning
Below 50 km/h, open windows are more efficient β A/C adds 0.5β1.5 L/100km.
Reduce weight and drag
Remove roof boxes and bike racks when not in use β they add 3β7% to consumption.
Regular servicing
A clogged air filter or worn spark plugs can increase fuel consumption by 5β10%.
Trip cost = (distance Γ· 100) Γ consumption Γ price per litre. For example, a 200 km trip with 7 L/100km consumption at β¬1.80/L costs β¬25.20.
L/100km measures how many litres are needed per 100 kilometres β lower is better. MPG (miles per gallon) measures how far you travel on one gallon β higher is better. The conversion formula is: MPG = 282.48 Γ· (L/100km).
With average petrol consumption of 7 L/100km and a price of β¬1.80/L: 1000 km Γ 0.07 Γ β¬1.80 = β¬126. Diesel at 5.5 L/100km costs β¬99. Electric at 18 kWh/100km at β¬0.20/kWh costs β¬36.
LPG typically costs 40β50% less per litre than petrol, but LPG engines consume about 25β30% more fuel by volume. The net saving is usually 20β35% depending on your vehicle and local prices.
Annual cost = monthly km Γ 12 Γ (consumption Γ· 100) Γ price. The monthly fuel cost field shows this automatically. For example, driving 1500 km/month at 7 L/100km with β¬1.80/L fuel costs β¬1,890/year.
Extra costs can include: motorway tolls (vignettes), parking fees, bridge and tunnel charges, and vehicle depreciation. For example, a drive to Vienna might add ~β¬15 for an Austrian vignette. The calculator adds these on top of the fuel cost to give you the total trip price.
Enter the vehicle's real-world consumption β typically 25β35 L/100km for heavy trucks, 12β18 L/100km for vans. Set the distance and diesel price. For a transport company's monthly costs, use the monthly distance field β for example, 10,000 km/month at 30 L/100km and β¬1.75/L gives β¬5,250 in fuel alone.
Yes β studies on real-world driving behavior show aggressive acceleration and braking can increase fuel consumption by 15-30% compared to smooth, anticipatory driving at the same average speed, since hard acceleration uses disproportionately more fuel than gradual acceleration.
Underinflated tires increase rolling resistance, raising fuel consumption by roughly 1-2% for every 0.2 bar (about 3 psi) below the manufacturer's recommended pressure. Checking tire pressure monthly is a low-effort way to keep your real consumption close to the manufacturer's rated figures.