Fuel Cost Calculator: Trip & Annual Costs

Multiply your consumption (e.g., 7 L/100km) by the distance and fuel price. Formula: (Consumption / 100) × Distance × Price. For 7 L/100km, 200 km and EUR 1.75/L: 0.07 × 200 × 1.75 = EUR 24.50. Our calculator does this automatically and also shows CO2 emissions and comparison options.

Electric vehicles have the lowest energy costs per kilometer, especially when charging at home. Comparison: petrol costs about 10-13 cents/km, diesel 8-10 cents/km, electricity (home charging) only 5-7 cents/km. LPG and CNG fall in between. However, higher purchase costs and charging infrastructure must be considered.

At 15,000 km/year and average prices, an electric car saves about EUR 1,000-1,300 per year in energy costs compared to a petrol car. Compared to diesel, savings are about EUR 600-900. Savings depend heavily on electricity price – home charging saves the most, while public fast chargers are significantly more expensive.

The average for passenger cars is about 7.5 L/100km for petrol and 6.0 L/100km for diesel. Hybrids consume about 5-6 L/100km, electric cars about 18 kWh/100km. Actual consumption depends heavily on driving style, route (city/highway), vehicle size, and load.

Fuel prices will continue to rise in the medium term due to the increasing CO2 price (since 2021). The CO2 levy increases fossil fuel costs by about 3-5 cents per liter annually. Currently (national average on 22 Sept 2026) Super E10 costs about EUR 2.27/L and diesel about EUR 2.43/L – far more than in 2025, mainly due to the Middle East conflict, and diesel is currently more expensive than petrol. A temporary energy tax cut of about 17 cents per liter (incl. VAT) is planned for 1 Oct to 31 Dec 2026; the parliamentary vote was still pending at the time of writing. The CO2 price for 2026 lies in a corridor of EUR 55 to 65 per ton.

Key saving tips: Drive anticipatively and maintain steady speed (saves up to 20%). Check tire pressure regularly (0.5 bar too low = about 5% more consumption). Remove unnecessary weight and roof racks. Shift up early (at 2,000 RPM). Use air conditioning consciously. Avoid short trips or use a bicycle. Compare fuel prices – up to 15 cents/L difference depending on time of day.

A full 50-liter petrol tank currently (September 2026) costs about EUR 110-115. For a 55-liter diesel tank, it is about EUR 130-135. A full charge of an EV with a 60 kWh battery costs about EUR 21 at home (EUR 0.35/kWh), or EUR 30-45 at public chargers (EUR 0.50-0.75/kWh).

An LPG conversion costs EUR 1,500-3,000 and saves about 40-50% of fuel costs compared to petrol. At 15,000 km/year, the investment pays off in 2-3 years. CNG vehicles from the factory are cheaper, but the filling station network is thinner. Note: LPG consumption is about 15-20% higher than petrol, while CNG efficiency is comparable.

An average petrol car with 7.5 L/100km emits about 173 g CO2/km. A diesel with 6 L/100km produces about 159 g CO2/km. An electric car causes about 72 g CO2/km in the German electricity mix. Per year (15,000 km): petrol about 2,600 kg, diesel about 2,385 kg, electric about 1,080 kg CO2. For comparison: trains only produce about 29 g CO2/km.

Yes, most likely. The CO2 price in Germany is scheduled to increase further, raising fossil fuel costs by several cents annually. Oil market prices and geopolitical factors also have an impact. Experts expect an annual price increase of about 3-5% for fossil fuels. Electricity for EVs, on the other hand, could remain more stable in the long term due to the expansion of renewable energy.