Petrol and Diesel Prices in Carmarthenshire
Compare petrol and diesel prices at 1 petrol stations in Carmarthenshire. Prices last updated 08:40 26/06/2026.
Petrol (E10)
152.9p
at Checkpoint Service station
Diesel (B7)
169.9p
at Checkpoint Service station
Super Unleaded (E5)
169.9p
at Checkpoint Service station
Premium Diesel
N/A
Unleaded (E10)
153.0p avg
0.8p above UK average (152.2p)
Diesel
170.0p avg
0.7p above UK average (169.3p)
Price History in Carmarthenshire
See how fuel prices have changed over time with interactive charts and analysis.
Click any column header to sort. Prices shown in pence per litre.
Carmarthenshire currently has 1 petrol station tracked by FuelCosts.co.uk. The average unleaded petrol price in Carmarthenshire today is 153.0p per litre, which is 0.8p above the UK national average of 152.2p.
The cheapest unleaded petrol in Carmarthenshire right now is 152.9p at Checkpoint Service station. The cheapest diesel is 169.9p at Checkpoint Service station.
Fuel prices in Carmarthenshire are sourced from the UK Government's CMA Fuel Finder scheme and updated every 4 minutes. We recommend comparing prices before filling up, as prices can vary significantly between stations even within the same town.