Diesel prices in Carmarthen

Distances are from the centre of Carmarthen.

Cheapest reported within 5 miles · Diesel (B7)

193.9p

MFG Morrisons Carmarthen · Morrisons

Parc Pensarn, Carmarthen, SA31 2NF

1.4 miles away · Open 24 hours

Price changed yesterday

£0.80 less on 40 litres than the local median (195.9p)

Directions

Nearest open station: Vst Towy Services Station, 0.8 mi, 195.9p. The top pick saves £0.80 on 40 litres, before the cost of any extra driving.

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MurcoEssoMorrisonsOil 4 Wales LtdTescoTexacoValero

  1. 191.9pTanerdy Garage · MurcoGo0.7 mi · Closed, opens 06:00
    Price changed yesterdayWrong price?
  2. 191.9pGwalia Garage · MurcoGo3.3 mi · Closed, opens 06:00
    Price changed 3 days agoWrong price?
  3. 193.9pMFG Morrisons Carmarthen · MorrisonsGo1.4 mi · Open 24 hours
    Price changed yesterdayWrong price?
  4. 195.9pVst Towy Services Station · TexacoGo0.8 mi · Open 24 hours
    Price changed 8 days agoWrong price?
  5. 195.9pCarmarthen Extra · TescoGo0.9 mi · Open 24 hours
    Price changed 12 days agoWrong price?
  6. 195.9pAsda White Mill Express Petrol · EssoGo3.2 mi · Closed, opens 06:00
    Price changed 4 days agoWrong price?
  7. 195.9pAscona Tenby Road Service Station · ValeroGo3.3 mi · Open 24 hours
    Price changed yesterdayWrong price?
  8. 195.9poil 4 wales ltd Nantycaws · Oil 4 Wales LtdGo4.2 mi · Closed, opens 06:00
    Price changed 2 days agoWrong price?
  9. 195.9pDerwydd Services · MurcoGo4.3 mi · Closed, opens 06:30
    Price changed 27 days agoWrong price?
  10. 196.9pCKs Supermarket · MurcoGo1.2 mi · Closed, opens 07:00
    Price changed 6 days agoWrong price?

See on the map

Carmarthen fuel prices today

FuelCheapestTypicalStations
Unleaded (E10)163.9p165.9p10
Super unleaded (E5)175.9p175.9p7
Diesel (B7)193.9p195.9p10
Premium diesel219.9p–3

Typical unleaded here is 3.0p below the Great Britain typical price of 168.9p.

What's the cheapest petrol in Carmarthen today?

MFG Morrisons Carmarthen (Morrisons) at 163.9p a litre, the lowest reported price at an open station within 5 miles. The typical price nearby is 165.9p.

What's the cheapest diesel in Carmarthen today?

MFG Morrisons Carmarthen (Morrisons) at 193.9p a litre, the lowest reported price at an open station within 5 miles. The typical price nearby is 195.9p.

Updated 10 November 2026 from GOV.UK Fuel Finder. "Typical" is the median of prices confirmed in the last 30 days. Closed stations are removed, and prices that differ sharply from nearby stations aren't ranked.

All stations in Carmarthen

Ascona Tenby Road Service StationAsda White Mill Express PetrolCKs SupermarketDerwydd ServicesGwalia GarageMFG Morrisons CarmarthenTanerdy Garage

Nearby towns

LlanelliCardiganSwanseaNeathHaverfordwestBridgendPontypriddBlackwood

Nearby postcode districts

SA31SA32SA33SA39SA17SA14SA16SA15