Question 1

How do I calculate my fuel costs per trip?

Accepted Answer

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

Question 2

Which fuel type is cheapest per kilometer?

Accepted Answer

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.

Question 3

How much do I save with an electric car on fuel costs?

Accepted Answer

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.

Question 4

What is the average fuel consumption in Germany?

Accepted Answer

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.

Question 5

How will fuel prices develop in 2026?

Accepted Answer

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 (2026), petrol averages EUR 1.70-1.80/L, diesel EUR 1.60-1.70/L. Geopolitical factors and oil market prices can cause additional fluctuations.

Question 6

How can I reduce my fuel costs?

Accepted Answer

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.

Question 7

How much does a full tank cost currently?

Accepted Answer

A full 50-liter petrol tank currently costs about EUR 85-90. For a 55-liter diesel tank, it is about EUR 90-95. 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).

Question 8

Is an LPG or CNG conversion worth it?

Accepted Answer

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.

Question 9

How much CO2 does my car produce?

Accepted Answer

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.

Question 10

Will fuel costs continue to rise in the coming years?

Accepted Answer

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.

Guide: Fuel Cost Calculator

Fuel Cost Calculation 2026: Formulas, Tips & Drivetrain Comparison

Petrol vs. Diesel: Which Fuel Is Cheaper?

Electric Car vs. Combustion: Electricity Costs vs. Fuel Costs

Save Fuel: 10 Tips for Lower Consumption

CO₂ Price: How It Makes Your Petrol and Diesel More Expensive

LPG & CNG: Are Alternative Fuels Worth It?