Your car’s fuel budget
What your year of driving costs at most at today’s official maximum price, and what it would have cost at the year’s lowest and highest prices.
A car driven 15,000 kilometres a year at 6 litres per 100 km burns 900 litres of fuel. At the official maximum price of 31 October 2026, that comes to at most €2,207 a year on diesel B7 (€2.452 a litre), or €184 a month, and €1,789 on 95 E10 petrol (€1.988 a litre). The same year of driving would have cost at most €1,510 on diesel at the lowest price of the last twelve months, on 19 December 2025, and €2,259 at the highest, on 28 October 2026. Each cent added to the litre price puts €9.00 on the yearly bill. These figures are an example built from the tool’s default values: replace them with your own mileage and real consumption. The maximum price is set by the FPS Economy under the programme agreement; a station may sell for less, so the budget you get is a ceiling.
Fuel budget a year, at today’s maximum price
€2,207
€184 a month · 900 litres at €2.452/L
| Cost per 100 km | €14.71 |
| At the lowest price over a year | €1,510 |
| At the highest price over a year | €2,259 |
| Each cent of increase costs a year | €9.00 |
Checked by Radif Partners · Editorial policy · Method and sources
The calculation in one line
A year’s fuel budget comes down to one multiplication: kilometres a year, times consumption per 100 km, divided by 100, times the price per litre. The tool does this at today’s official maximum price for the fuel you choose, then repeats it at the lowest and highest prices of the last twelve months, to show the possible spread.
What 100 km costs today
| Consumption | Diesel B7 | 95 E10 | 98 E5 |
|---|---|---|---|
| 4 L/100 km | €9.81 | €7.95 | €8.60 |
| 5 L/100 km | €12.26 | €9.94 | €10.75 |
| 6 L/100 km | €14.71 | €11.93 | €12.89 |
| 7 L/100 km | €17.16 | €13.92 | €15.04 |
| 8 L/100 km | €19.62 | €15.90 | €17.19 |
| 9 L/100 km | €22.07 | €17.89 | €19.34 |
The table gives the cost of a trip at a glance: a 40 km round trip in a car using 6 litres per 100 km costs at most €5.88 on diesel and €4.77 on 95 E10 petrol. For LPG, which burns more litres, the LPG price page works out the consumption above which it stops paying off.
A year of prices, a budget that moves
Over the last 365 days the maximum price of diesel changed 68 times and that of 95 E10 petrol 48 times. Applying today’s price to a whole year gives a snapshot, not a forecast. The next table takes the example of 15,000 km at 6 litres per 100 km with the extreme and average prices of the last 365 days.
| Price applied | Diesel B7 | 95 E10 |
|---|---|---|
| Lowest over a year | €1,510 | €1,416 |
| Average over a year | €1,847 | €1,639 |
| Today | €2,207 | €1,789 |
| Highest over a year | €2,259 | €1,897 |
The gap between the lowest and highest lines shows how much a car budget depends on timing. The full curves are on the fuel price history page.
A ceiling, not a bill
The maximum price is set by the FPS Economy and taken up every day by Statbel on be.STAT. A station may sell for less, so the budget worked out here is what the year would cost you at worst at today’s tariff. To compare two fuels on the same fill-up, see fuel prices; for heating with oil, the same calculation is on heating budget.