Fuel prices › Wales › Carmarthen
Cheapest petrol and diesel in Carmarthen today
Sunday, 15 November 2026 · updated 15 Nov, 13:34 · 7 filling stations in Carmarthen
The cheapest petrol in Carmarthen today is 158.9p a litre at Gwalia Garage, and the cheapest diesel is 188.9p at Gwalia Garage.
Carmarthen average 161.0p
Carmarthen average 192.2p
Unleaded petrol (E10) prices in Carmarthen
7 stations with a current price, cheapest first. Filling a 50-litre tank at the cheapest instead of the dearest saves about £3.50.
- 1Gwalia GarageMurco · Gwalia Garage, SA32 7DR · updated 14 Nov, 09:07158.9p
- 2Mfg Morrisons CarmarthenMorrisons · Parc Pensarn, SA31 2NF · updated 14 Nov, 23:50158.9p
- 3Tanerdy GarageMurco · Tanerdy Garage, SA31 2EY · updated 14 Nov, 09:07158.9p
- 4Ascona Tenby Road Service StationValero · Lysonnen Road, SA33 5DT · updated 15 Nov, 11:38159.9p
- 5Derwydd ServicesMurco · Derwydd Garage, SA33 6TP · updated 15 Nov, 11:16159.9p
- 6Asda White Mill Express PetrolEsso · A40, Carmarthen, SA32 7EN · updated 9 Nov, 21:22164.9p
- 7Cks SupermarketMurco · C K's Supermarket, SA31 3HL · updated 10 Nov, 14:01165.9p
Diesel (B7) prices in Carmarthen
7 stations with a current price, cheapest first. Filling a 50-litre tank at the cheapest instead of the dearest saves about £3.50.
- 1Gwalia GarageMurco · Gwalia Garage, SA32 7DR · updated 14 Nov, 09:07188.9p
- 2Tanerdy GarageMurco · Tanerdy Garage, SA31 2EY · updated 14 Nov, 09:07188.9p
- 3Derwydd ServicesMurco · Derwydd Garage, SA33 6TP · updated 15 Nov, 11:16189.9p
- 4Mfg Morrisons CarmarthenMorrisons · Parc Pensarn, SA31 2NF · updated 13 Nov, 23:44191.9p
- 5Ascona Tenby Road Service StationValero · Lysonnen Road, SA33 5DT · updated 14 Nov, 12:58193.9p
- 6Asda White Mill Express PetrolEsso · A40, Carmarthen, SA32 7EN · updated 6 Nov, 16:21195.9p
- 7Cks SupermarketMurco · C K's Supermarket, SA31 3HL · updated 10 Nov, 14:01195.9p
Super unleaded (E5) prices in Carmarthen
4 stations with a current price, cheapest first. Filling a 50-litre tank at the cheapest instead of the dearest saves about £6.70.
- 1Gwalia GarageMurco · Gwalia Garage, SA32 7DR · updated 9 Nov, 08:16172.5p
- 2Tanerdy GarageMurco · Tanerdy Garage, SA31 2EY · updated 9 Nov, 06:00172.5p
- 3Derwydd ServicesMurco · Derwydd Garage, SA33 6TP · updated 15 Nov, 11:16178.9p
- 4Mfg Morrisons CarmarthenMorrisons · Parc Pensarn, SA31 2NF · updated 5 Nov, 23:52185.9p
Premium diesel prices in Carmarthen
2 stations with a current price, cheapest first.
- 1Gwalia GarageMurco · Gwalia Garage, SA32 7DR · updated 9 Nov, 08:16202.5p
- 2Tanerdy GarageMurco · Tanerdy Garage, SA31 2EY · updated 9 Nov, 06:00202.5p
Questions about fuel in Carmarthen
- Where is the cheapest petrol in Carmarthen today?
- Gwalia Garage, Gwalia Garage, SA32 7DR at 158.9p a litre for unleaded (E10), last updated 14 Nov, 09:07.
- Where is the cheapest diesel in Carmarthen today?
- Gwalia Garage, Gwalia Garage, SA32 7DR at 188.9p a litre, last updated 14 Nov, 09:07.
- How much is fuel in Carmarthen?
- Unleaded petrol averages 161.0p a litre and diesel averages 192.2p across Carmarthen's filling stations today.
- How many petrol stations are there in Carmarthen?
- FillZap has live prices for 7 filling stations in and around Carmarthen.
- Where do these prices come from?
- From the UK government's Fuel Finder scheme, which forecourts must report their prices to. They update through the day, but can change before you get there, so check the pump.
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