How much does it cost to fill up my car?
See what a full tank costs, or estimate your next top-up. Enter your car’s tank size and the price at the pump.
Your fill-up
Your estimated cost
This is an estimate using your inputs. Your fuel gauge is approximate, and the amount you can add varies. Always follow your vehicle and pump instructions; stop at the pump’s automatic cut-off.
Compare current fuel prices →How the calculation works
Litres to add = tank capacity × the proportion of the tank that is empty. Multiply those litres by the pump price in pence, then divide by 100 to get pounds.
Example: a 55-litre tank at 174.9p per litre costs £96.20 from empty. If it is half full, adding about 27.5 litres costs £48.10. These are example inputs, not a live average.
Full tank cost or journey cost?
The cost to fill your tank depends on litres and pump price. MPG matters when estimating how much fuel a journey uses. Petrol, diesel, hybrid and plug-in hybrid fuel tanks use the same fill-up calculation.
Calculate journey fuel cost · Compare fuel stops along a route