Cheapest fuel in Cardiff
Updated 18 September 2026
The cheapest petrol in Cardiff is 169.9p a litre at Independent / other, Barry, and the cheapest diesel is 192.9p at Tesco, Caerdydd. Across 9 forecourts in the area, unleaded averages 172.2p.
Filling a 55-litre tank at the cheapest station costs £93.44 — £1.26 less than filling at the Cardiff average, and £2.20 less than the most expensive forecourt nearby.
- Cheapest unleaded
- 169.9pIndependent / other
- Cheapest diesel
- 192.9pTesco
- Cardiff average
- 172.2p−1.1p vs UK
- Forecourts tracked
- 9within 7 miles
Fuel prices in Cardiff
Unleaded in Cardiff averages 172.2p, which is 1.1p below the national average of 173.3p — cheaper than the UK average. Over a year of fortnightly 55-litre fills that is about £16 less than a typical UK driver pays.
The gap between the cheapest and most expensive forecourt in the Cardiff area is 4.0p a litre. On a 55-litre tank that is £2.20 — the difference between the best and worst choice on the same day, for the same fuel.
Cheapest forecourts in Cardiff right now
Cheapest petrol in Cardiff
9 forecourts in the area publish an unleaded price, averaging 172.2p a litre.
| # | Station | Unleaded | 55-litre tank |
|---|---|---|---|
| 1 | Independent / other | 169.9p | £93.44 |
| 2 | Tesco | 170.9p | £94.00 |
| 3 | Esso | 171.9p | £94.55 |
| 4 | Esso | 171.9p | £94.55 |
| 5 | BP | 171.9p | £94.55 |
| 6 | Esso | 172.9p | £95.09 |
| 7 | Texaco | 172.9p | £95.09 |
| 8 | BP | 173.9p | £95.64 |
| 9 | Esso | 173.9p | £95.64 |
Cheapest super unleaded petrol in Cardiff
8 forecourts in the area publish a super unleaded price, averaging 189.0p a litre.
| # | Station | Super unleaded | 55-litre tank |
|---|---|---|---|
| 1 | Tesco | 180.9p | £99.50 |
| 2 | Texaco | 185.9p | £102.25 |
| 3 | Independent / other | 189.9p | £104.44 |
| 4 | Esso | 189.9p | £104.44 |
| 5 | Esso | 189.9p | £104.44 |
| 6 | Esso | 190.9p | £105.00 |
| 7 | BP | 190.9p | £105.00 |
| 8 | BP | 193.9p | £106.64 |
Cheapest diesel in Cardiff
9 forecourts in the area publish a diesel price, averaging 197.6p a litre.
| # | Station | Diesel | 55-litre tank |
|---|---|---|---|
| 1 | Tesco | 192.9p | £106.09 |
| 2 | Independent / other | 195.9p | £107.75 |
| 3 | Esso | 197.9p | £108.84 |
| 4 | Esso | 197.9p | £108.84 |
| 5 | BP | 197.9p | £108.84 |
| 6 | Esso | 197.9p | £108.84 |
| 7 | Esso | 197.9p | £108.84 |
| 8 | Texaco | 197.9p | £108.84 |
| 9 | BP | 201.9p | £111.05 |
About fuel in Cardiff
Cardiff has the densest concentration of forecourts in Wales and typically the country's most competitive prices, with the big supermarket sites off the A48 and around Cardiff Bay leading on price.
Forecourts in the Cardiff area are operated by Esso (4), BP (2), Tesco (1), Independent / other (1), Texaco (1).
Cardiff sits in Cardiff, in the Wales region. This page covers forecourts within about 7 miles of the town centre, which is the realistic detour range for a fill-up.
Fuel prices in nearby towns
Forecourts compete across town boundaries, so a neighbouring town is often worth a look — especially if you are passing through anyway.
Questions
Fuel prices in Cardiff — FAQ
Where is the cheapest petrol in Cardiff?
Independent / other, Barry is currently the cheapest at 169.9p a litre for unleaded. The five cheapest forecourts in the area are Independent / other Barry (169.9p), Tesco Caerdydd (170.9p), Esso Cardiff (171.9p), Esso Cardiff (171.9p), BP Cardiff (171.9p). Prices change daily — the live map always shows the current figure.
How much is petrol in Cardiff?
Unleaded averages 172.2p a litre (£1.72) across 9 forecourts in the Cardiff area, ranging from 169.9p to 173.9p. Filling a 55-litre tank at the local average costs £94.71.
How much is diesel in Cardiff?
Diesel averages 197.6p a litre across 9 forecourts in the Cardiff area. The cheapest is 192.9p at Tesco, Caerdydd, and the most expensive nearby is 201.9p.
Is fuel cheaper in Cardiff than the rest of the UK?
Cardiff averages 172.2p for unleaded against a UK average of 173.3p — −1.1p the national figure. See how much petrol costs across the UK for the full regional picture.
How do I get alerts when fuel gets cheaper in Cardiff?
Save your regular forecourts as favourites in the free CheapestFuel iOS app and turn on price-drop notifications. You will get a push alert when one of them cuts its price.
Never overpay in Cardiff again
Save your local forecourts as favourites and get a push alert the moment one of them drops its price.
Prices are aggregated from retailers' published fuel price feeds under the UK government's open fuel price scheme, which covers Great Britain only. Last updated 18 September 2026. Figures are indicative and can change without notice — always check the price displayed at the pump before filling up. See our privacy policy for how we handle data.