Fuel prices in
Carmarthenshire
Live fuel prices from 43 stations across Carmarthenshire. Find the cheapest petrol and diesel near you.
Cheapest fuel stations in Carmarthenshire
Checkpoint Service station currently leads on price in Carmarthenshire at 156.9p — 3.5p below the city average. Filling a 55-litre tank here saves you £1.93 vs the average station.
Fuel prices in Carmarthenshire — FAQs
Where is the cheapest petrol in Carmarthenshire today?+
The cheapest petrol in Carmarthenshire today is at Checkpoint Service station (SA19 8DT) at 156.9p per litre. Prices are updated every 30 minutes from the official UK Government Fuel Finder data.
What is the average petrol price in Carmarthenshire?+
The average petrol (E10) price in Carmarthenshire is currently 160.4p per litre, which is 3.6p above the UK national average of 156.8p. Supermarket stations like Tesco and Asda typically offer the lowest prices.
What is the cheapest diesel price in Carmarthenshire?+
The cheapest diesel (B7) in Carmarthenshire is currently 179.9p per litre at Morris Isaacs. The average diesel price across Carmarthenshire is 186.4p.
How often are fuel prices updated in Carmarthenshire?+
Fuel prices across Carmarthenshire are updated every 30 minutes. All major UK fuel retailers are legally required to report prices to the government's Fuel Finder scheme, which FuelSignal pulls from automatically.
Which fuel brands are cheapest in Carmarthenshire?+
Supermarket fuel stations — Tesco, Asda, Morrisons, and Sainsbury's — are almost always the cheapest in Carmarthenshire, typically 4–8p per litre below branded stations like Shell and BP. Among non-supermarket brands, JET and Gulf often offer competitive prices.
Is petrol cheaper in Carmarthenshire than the UK average?+
Carmarthenshire petrol prices are currently 3.6p per litre above the UK national average of 156.8p. Filling up at a supermarket station can help reduce costs.
How can I save money on fuel in Carmarthenshire?+
To save money on petrol in Carmarthenshire: (1) Use supermarket stations which are typically 5–8p cheaper than branded forecourts. (2) Avoid filling up near motorway services which charge a significant premium. (3) Use FuelSignal to compare all 43 stations in Carmarthenshire and find the cheapest price near you before you travel.