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Cheapest Petrol & Diesel in Caernarfon Today

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Last updated: · Prices refresh every 30 minutes from the UK government's Fuel Finder service.

Cheapest Petrol in Caernarfon

147.9p per litre at Texaco, Llandwrog Caernarfon
Area average: 148.8p — save up to 0.9p/litre

Cheapest Diesel in Caernarfon

159.7p per litre at Morrisons, Caernarfon
Area average: 162.0p — save up to 2.3p/litre
See all 6 stations View on map 30-day trend Annual cost
Browse by brand: TexacoEssarMorrisonsShell

There are 6 fuel stations in Caernarfon reporting live prices via the UK government's Fuel Finder service. Unleaded petrol (E10) averages 148.8p per litre across 6 stations. Diesel (B7) averages 162.0p across 6 stations. Unleaded is 2.8p below the national average of 151.6p.

Use our fuel station finder to find the most economical place to fill up near you, or calculate the fuel cost of a longer trip from Caernarfon.

Fuel Stations in Caernarfon

Station ⇅ Postcode ⇅ E10 ⇅ E5 ⇅ B7 ⇅ SDV ⇅
Essar, Llanrug Caernarfon LL55 4DE 148.9p – 163.9p –
Morrisons, Caernarfon LL55 1BE Super-market 148.7p 165.9p 159.7p Cheapest –
Shell, Caeathro Caernarfon LL55 2SS 149.9p 161.9p Cheapest 163.9p –
Texaco, Llandwrog Caernarfon LL54 7EF 147.9p Cheapest 165.9p 159.9p –
Texaco, Caernarfon LL55 2HP 148.7p – 159.7p –
Texaco, Llanddeiniolen Caernarfon LL55 3NF 148.9p – 164.9p –

Station Map

Nearby Towns

Caeathro
1 stations
Unleaded avg 149.9p
Diesel avg 163.9p
Waunfawr
1 stations
Unleaded avg 149.9p
Diesel avg 163.9p
Llanrug
1 stations
Unleaded avg 148.9p
Diesel avg 163.9p
Llandwrog
1 stations
Unleaded avg 147.9p
Diesel avg 159.9p
Llanddeiniolen
1 stations
Unleaded avg 148.9p
Diesel avg 164.9p
Rhosyr
1 stations
Unleaded avg 156.9p
Diesel avg 176.9p
Llanfair Pg
1 stations
Unleaded avg 156.9p
Diesel avg 176.9p
Llanfair Pwllgwyngyll
1 stations
Unleaded avg 151.9p
Diesel avg 159.9p

Average Petrol and Diesel Prices in Caernarfon (pence per litre)

Unleaded (E10)
148.8p
6 stations
±0.6p std dev
2.8p below national
Super Unleaded (E5)
164.6p
3 stations
±1.9p std dev
4.8p below national
Diesel (B7)
162.0p
6 stations
±2.3p std dev
3.6p below national

30-Day Price Trend in the Llandudno Region (pence per litre)

Daily averages across all stations in the Llandudno postcode area over the last 30 days. Caernarfon sits within this region.

What does fuel cost a typical driver in Caernarfon?

At current prices, a typical driver covering 12000 miles a year in a petrol car averaging 35 mpg spends about £2320/year on fuel in Caernarfon (at 148.8p/L). That's £43 less than the UK average of £2363. Across the wider Llandudno (LL) postcode area petrol averages 152.6p/L, working out at £2379/year.

A diesel driver doing the same 12000 miles at 50 mpg spends about £1768/year at Caernarfon's average diesel price of 162.0p/L. That's £39 less than the UK average of £1807. Across the wider Llandudno (LL) postcode area diesel averages 165.7p/L — £1808/year.

Choose the right station — save £££

The cheapest petrol in Caernarfon is 147.9p/L and the most expensive is 149.9p/L — a 2.0p/L spread. Filling a 60‑litre tank at the cheapest vs the dearest saves £1.20.

For diesel the spread is 5.2p/L (159.7p cheapest, 164.9p dearest) — £3.12 saved on a 60‑litre fill.

Fuel Prices by Brand in Caernarfon

Average prices and cheapest station for each fuel brand in Caernarfon.

Texaco Fuel Prices in Caernarfon

There are 3 Texaco forecourts in Caernarfon. Petrol averages 148.5p/L — 0.3p below the Caernarfon average. Diesel averages 161.5p/L (0.5p below town avg). Cheapest petrol: Texaco, Llandwrog at 147.9p. Texaco fuel prices across the UK →

Show 3 Texaco stations
StationPostcodeE10B7
Texaco, Llandwrog LL54 7EF 147.9p 159.9p
Texaco, Caernarfon LL55 2HP 148.7p 159.7p
Texaco, Llanddeiniolen LL55 3NF 148.9p 164.9p

Essar Fuel Prices in Caernarfon

There is 1 Essar forecourt in Caernarfon. Petrol is 148.9p/L — 0.1p above the Caernarfon average. Diesel is 163.9p/L (1.9p above town avg). Live prices: Essar, Llanrug.

Show station details
StationPostcodeE10B7
Essar, Llanrug LL55 4DE 148.9p 163.9p

Morrisons Fuel Prices in Caernarfon

There is 1 Morrisons forecourt in Caernarfon. Petrol is 148.7p/L — 0.1p below the Caernarfon average. Diesel is 159.7p/L (2.3p below town avg). Live prices: Morrisons, Caernarfon. Morrisons fuel prices across the UK →

Show station details
StationPostcodeE10B7
Morrisons, Caernarfon LL55 1BE 148.7p 159.7p

Shell Fuel Prices in Caernarfon

There is 1 Shell forecourt in Caernarfon. Petrol is 149.9p/L — 1.1p above the Caernarfon average. Diesel is 163.9p/L (1.9p above town avg). Live prices: Shell, Caeathro. Shell fuel prices across the UK →

Show station details
StationPostcodeE10B7
Shell, Caeathro LL55 2SS 149.9p 163.9p

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Frequently Asked Questions

The cheapest unleaded petrol (E10) in Caernarfon today is 147.9p per litre at Texaco, LL54 7EF. The average across 6 stations is 148.8p. Prices are sourced from the UK government's Fuel Finder service and updated every 30 minutes.

The cheapest diesel (B7) in Caernarfon today is 159.7p per litre at MORRISONS, LL55 1BE. The average across 6 stations is 162.0p. Prices are sourced from the UK government's Fuel Finder service.

The average unleaded (E10) price in Caernarfon is 148.8p per litre from 6 stations. The national average is 151.6p, so Caernarfon is 2.8p below the national average.

The average diesel (B7) price in Caernarfon is 162.0p per litre from 6 stations. The national average is 165.6p, so Caernarfon is 3.6p below the national average.

There are currently 6 fuel stations reporting prices in Caernarfon. This includes supermarket forecourts, independent stations, and branded sites.

Fuel prices on MPG Calc are updated every 30 minutes using official data from the UK government's Fuel Finder service. All retailers with 250+ filling stations are required by law to report their prices, covering the vast majority of UK forecourts.