Every price on this page is a live pump price from our own feeds — the UK from the retailer files published under the CMA Fuel Finder scheme, France from the official station data. Nothing here is an estimate.
On a 50-litre diesel fill that is £2.88 in the UK's favour.
Unleaded petrol is 14.9p a litre cheaper in the UK today.
Prices updated 3 Sep 2026, 00:02 UTC · UK data 2 Sep 2026, 18:58 UTC · France data 3 Sep 2026, 00:02 UTC
Median price per litre across every station that reported in the last 7 days: 2,374 in the UK and 8,255 in France. We show both currencies because the pumps do not: British stations price in pence per litre, French ones in euros per litre.
| Fuel | United Kingdom | France | Difference | 50-litre tank |
|---|---|---|---|---|
| Diesel | £1.839€2.142 | £1.897€2.209 | 5.8pcheaper in the UK | £2.88 |
| Unleaded (E10 / SP95-E10) | £1.619€1.885 | £1.768€2.059 | 14.9pcheaper in the UK | £7.47 |
Exchange rate: €1 = £0.8587 (European Central Bank reference rate). A litre is 0.22 imperial gallons, so a penny per litre is about 4.5p per gallon. UK figures cover 2,374 of our 3,879 British stations: the rest (39%) have not reported a price recently and are left out rather than shown as stale.
The national medians above are the honest headline, but nobody drives the national average. What matters at 6am on the M20 is the price within reach of the port. These are the medians within 25 km of Dover and Folkestone on one side, and of Calais on the other.
| Fuel | Kent (Dover area) | Calais area | Difference |
|---|---|---|---|
| Diesel | £1.864€2.171 · 12 stations | £1.897€2.209 · 32 stations | 3.3pcheaper in the UK |
| Unleaded | £1.634€1.903 · 12 stations | £1.785€2.079 · 23 stations | 15.1pcheaper in the UK |
Three corridors, each with the live prices we hold right now. Every station links through to its own page, with the full fuel list and the map.
Today the arithmetic runs the other way: diesel is cheaper in Britain, so the classic advice — "top up in France before boarding" — would cost you about £2.88 on a 50-litre tank. Arrive in France with a full tank, and buy what you need once you are back home.
Two things the headline number does not cover. A detour of ten miles to save two pence a litre does not pay on a 50-litre tank. And French motorway service areas are consistently dearer than the supermarket and town stations a few minutes off the exit — the corridor pages above rank by price, so the gap is visible rather than assumed.
For context beyond our own feeds: the European Commission's weekly bulletin put the French average at €2.231/L for diesel and €2.063/L for Euro-95 in the week of 24 Aug 2026. There is no UK line in that bulletin — it covers EU member states, and the United Kingdom left the EU.
Diesel is 5.8p a litre cheaper in the UK today. The national median is £1.839 a litre in the UK (€2.142) and £1.897 a litre in France (€2.209), across stations that reported a price in the last 7 days.
Unleaded petrol is 14.9p a litre cheaper in the UK today. We compare UK Unleaded (E10) with French SP95-E10, the same fuel: £1.619 a litre in the UK against £1.768 a litre in France.
On today's prices, fill up in Kent before you board: diesel around the Dover and Folkestone area is £1.864 a litre, against £1.897 within 25 km of Calais.
About £2.88 on a 50-litre diesel fill, at today's median prices in the UK. That is the fuel saving alone, before any detour.
The cheapest live diesel we hold within 15 km of Calais is €2.169 a litre at Station Calais in Calais, 4.0 km from the port, reported 2 Sep.
UK prices come from the retailer files published under the CMA Fuel Finder scheme (Tesco, BP, Asda, Morrisons, Sainsbury's, Esso, Jet, MFG, Shell and others). We hold 3,879 British stations, of which 2,374 reported a price in the last 7 days; the remaining 39% are excluded from every figure on this page. French prices come from the official national station data, published under the Licence Ouverte 2.0: 8,255 of 10,105 stations are current. Medians, not averages, so a handful of motorway outliers cannot move the headline. Prices convert at the ECB reference rate and are indicative: the pump is the only price that counts.
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French prices: official station data published under the Licence Ouverte 2.0 (Etalab), retrieved 3 Sep 2026, 00:02 UTC. UK prices: the retailer feeds published under the CMA Fuel Finder scheme (gov.uk), retrieved 2 Sep 2026, 18:58 UTC. Prices are indicative and can change before you reach the pump. © 2026 fuel-prices.eu · Methodology · About