Fuel tools

Set your fuel price once, then scroll: every calculator below uses it, and each setting you change carries down the page.

Price converter

Your fuel price in £ per litre and £ per gallon.

174.4pper litre

124p 225p

UK average Petrol (E10): 174.4p/litre · 14 October 2026

£ per litre—
£ per UK gallon—

Fill my tank

What a fill costs, from empty or part full.

Using price —

Your tank50 litres
It’s now
Litres to fill—
Cost to fill—
Real tank sizes from manufacturers

Fuel tank capacities from manufacturers’ published UK specifications. Tank sizes differ between versions of the same model, so check your own car’s handbook.

VehicleVersionTankSourceUse
Toyota Aygo X HybridUK spec Feb 2026 · 1.5 Hybrid · Petrol hybrid30 LToyota UK technical specifications · checked 2026-10-15
Toyota Aygo XUK spec Apr 2024 · 1.0 VVT-i, manual or CVT · Petrol35 LToyota UK technical specifications · checked 2026-10-15
Toyota YarisUK spec Mar 2024 · 1.5 Hybrid, 114 or 129 bhp · Petrol hybrid36 LToyota UK technical specifications · checked 2026-10-15
Toyota CorollaUK spec Apr 2024 · 1.8 or 2.0 Hybrid · Petrol hybrid43 LToyota UK technical specifications · checked 2026-10-15
Land Rover Range Rover Evoque2025 model year · D165 or D200 diesel, eco tank · Diesel mild hybrid54 LLand Rover UK technical specification 2025 · checked 2026-10-15
Toyota RAV4UK spec Feb 2022 · 2.5 Hybrid, FWD or AWD-i · Petrol hybrid55 LToyota UK technical specifications · checked 2026-10-15
Land Rover Range Rover Evoque2025 model year · D165 or D200 diesel, large tank · Diesel mild hybrid65 LLand Rover UK technical specification 2025 · checked 2026-10-15
Land Rover Range Rover Evoque2025 model year · P160 petrol, large tank · Petrol mild hybrid67 LLand Rover UK technical specification 2025 · checked 2026-10-15
Land Rover Defender2025 model year · D250 or D350 diesel · Diesel mild hybrid89 LLand Rover UK technical specification 2025 · checked 2026-10-15
Land Rover Defender2025 model year · V8 P425 or P525 petrol · Petrol90 LLand Rover UK technical specification 2025 · checked 2026-10-15
Full tankCostAddCost
30 litres—
40 litres—
50 litres—
60 litres—
70 litres—
80 litres—

Journey cost

Fuel used and cost for a journey, from your car's MPG.

Using price —

Your car's fuel economy45 MPG
Journey30 miles
Distance—
Fuel used—
Fuel cost—
MilesLitresGallonsCost

Estimates from the MPG you set; real consumption depends on speed, traffic, load and weather. Gallons are UK gallons.

Journey cost over time

What the same journey cost at the UK average price on earlier days.

Using journey — · economy — · fuel —

Latest—
A month earlier—
Start of record—
Highest—
WhenJourney costThan now

Uses the UK average price on each day from aqoFUEL’s records, not the price you set above.

Is it worth driving further?

Does a cheaper forecourt still save money once you count the extra miles?

Using nearby price — · buying — · economy —

The other forecourt is cheaper by5.0 p/litre
Extra distance, there and back6.0 miles

The whole detour: a forecourt 3 miles further away is 6 miles there and back.

Driving further—
Saving on the fuel—
Detour fuel cost—
Worth it up to—

Fuel only: time, wear and other costs of the extra miles aren’t included. Fuel burned on the detour is valued at the cheaper price.

Cheaper fuel savings

What a few pence a litre cheaper is worth.

Using price — · cheaper by — · buying —

You save—
Cost at the cheaper price—
Cost at your price—
Fill1p2p5p10p
30 litres£0.30£0.60£1.50£3.00
40 litres£0.40£0.80£2.00£4.00
50 litres£0.50£1.00£2.50£5.00
60 litres£0.60£1.20£3.00£6.00
70 litres£0.70£1.40£3.50£7.00
80 litres£0.80£1.60£4.00£8.00

Saving on a fill at 1p, 2p, 5p and 10p a litre cheaper.

Fuel economy converter

MPG, litres per 100 km and km per litre.

Using economy —

Miles per gallon—
Litres per 100 km—
Km per litre—

MPG uses the UK (imperial) gallon, 4.54609 litres. Lower litres per 100 km is better; higher MPG and km per litre are better. UK forecourts sell fuel by the litre.