Fuel Tank Cost Calculator
Estimate how much it costs to fill your tank based on live pump prices per litre, your tank capacity in litres or gallons, and compare with nearby stations to save money.
Tank & Price Details
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User Guide & Reference
Explore expandable guides on calculating fill-up costs, vehicle capacities, and fuel saving tips.
How to Use the Fuel Tank Calculator (Step-by-Step)
Enter Price per Litre
Input pump price in pence (e.g. 163.1p). If navigating from a station page, this is pre-filled automatically.
Set Tank Capacity
Enter tank volume (max 200) and choose Litres or UK Imperial Gallons, or use the quick vehicle presets.
Choose Fill Level
Select Full (100%), 3/4 (75%), Half (50%), or 1/4 (25%) tank.
Get Instant Cost
Click Calculate Cost to view total price, volume filled, potential savings at cheaper stations, and range.
Typical UK Vehicle Fuel Tank Capacities Table
Use this reference table to find the typical fuel tank capacity for your vehicle category:
| Vehicle Category | Capacity (Litres) | Capacity (UK Gallons) | Popular Examples |
|---|---|---|---|
| City / Supermini Car | 35 - 42 L | 7.7 - 9.2 gal | Fiat 500, Hyundai i10, Toyota Aygo, VW Up! |
| Small Family Hatchback | 45 - 52 L | 9.9 - 11.4 gal | Ford Fiesta, VW Polo, Vauxhall Corsa, Renault Clio |
| Medium Family Hatchback / Crossover | 50 - 58 L | 11.0 - 12.8 gal | VW Golf, Ford Focus, Nissan Qashqai, Kia Sportage |
| Executive Saloon / Estate | 58 - 68 L | 12.8 - 15.0 gal | BMW 3/5 Series, Audi A4/A6, Mercedes C/E-Class |
| Large SUV / 4x4 / Van | 70 - 90 L | 15.4 - 19.8 gal | Range Rover, Ford Transit, Volvo XC90, BMW X5 |
Frequently Asked Questions (Capacity, Reserves & Gallon Units)
How do I find my vehicle's exact tank capacity?
You can find your vehicle's exact fuel capacity in your vehicle handbook/owner's manual, inside the fuel filler flap, or on the vehicle registration document.
What is the difference between UK Gallons and US Gallons?
The UK uses the Imperial Gallon, which equals 4.54609 Litres. In contrast, the US gallon is smaller, equaling 3.78541 Litres. This calculator uses standard UK Imperial Gallons.
Does tank capacity include the reserve fuel?
Yes, the stated tank capacity includes the reserve capacity (usually 4 to 8 litres) that remains when your low fuel warning light comes on.