Petrol Prices in Cardiff: Cheapest Fuel Today
Live fuel prices at Cardiff stations — sorted cheapest first. Updated daily from official UK Government data.
The cheapest petrol in Cardiff today is 149.9p per litre, with an average price of 157.9p/L across 103 of 103 total stations, 1.0p below the UK average of 158.9p/L. B7 diesel starts from 167.9p/L (avg 183.9p across 102 stations). All prices are sourced from the UK Government Fuel Finder scheme and updated daily as of 29 July 2026.
Petrol prices in Cardiff are tracked across 103 stations, giving drivers an up-to-date view of local fuel costs. Standard unleaded (E10) is currently available from 149.9p per litre at the cheapest forecourt, with a city-wide average of 157.9p.
B7 diesel in Cardiff starts from 167.9p per litre, averaging 183.9p across 102 stations. At the cheapest forecourt, diesel is currently 18.0p per litre more expensive than standard petrol.
Supermarket forecourts — Asda, Tesco, Sainsbury's, and Morrisons — tend to offer the lowest prices in Cardiff and are typically 3–8p per litre cheaper than branded stations such as BP, Shell, and Esso. For drivers filling up weekly, consistently choosing the cheapest local forecourt can save upwards of £100 per year without any change to routine.
Cardiff sits within Wales. Drivers in neighbouring areas such as Swansea and Bristol can also compare live prices for their nearest stations using the links below.
For national trends and weekly movement across the UK, see our fuel price insights.
Prices updated:
Cheapest Premium Diesel Stations in Cardiff
No SDV stations found in Cardiff
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Popular Fuel Brands in Cardiff
Fuel prices in Cardiff — FAQ
- What is the cheapest petrol in Cardiff?
- Search live prices to find the cheapest petrol in Cardiff.
- How often are Cardiff fuel prices updated?
- Cardiff fuel prices are updated daily from official UK Government data on PetrolPricesNearYou. The data comes from the UK Government Fuel Finder scheme, which requires retailers to publish their prices daily.
Fuel prices near Cardiff
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