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Wales Online
Wales Online
National
Alice Suffield

The cheapest petrol and diesel prices in Wales and the areas to avoid buying fuel

Petrol and diesel prices are on the way back down after reaching record highs in March. According to the RAC's fuel watch, the average fuel prices across the UK are 162.21p for unleaded and 176.25p for diesel.

Fuel costs are just one aspect of the increasing cost of living, but the impact on household budgets is not uniform across Wales as prices can vary by as much as 15p per litre.

Admiral Car Insurance has calculated how much the average motorist is set to spend on petrol over the next 12 months. Assuming motorists travel the UK average of 7,490 miles per year, Admiral multiplied the local cost of refuelling with petrol (as of 19th April 2022) and compared it to the local median salary in each of England's counties. You can read all our stories on fuel prices here.

Read more: W hy petrol stations in the UK are running out of fuel despite there being no shortage

Monmouthshire ranked as the most expensive place to refuel in Wales with an average petrol price per litre of 165.1p and an average annual mileage cost of a whopping £1,134. You can get more traffic and travel news and other story updates by subscribing to our newsletters here.

Flintshire ranked as the 2nd most expensive place with a petrol price of 164.1p per litre (average annual cost of £1,127) and Vale of Glamorgan and Isle of Anglesey both ranked as the joint 3rd most expensive petrol prices (both 163.9p petrol price per litre).

Ranking County

Average petrol price per L (p)

Annual mileage cost (£)*

1

Monmouthshire

165.1 1,134
2 Flintshire 164.1 1,127
3 Vale of Glamorgan 163.9 1,126
3 Isle of Anglesey 163.9 1,126
5 Neath Port Talbot 163.5 1,123
6 Newport 163.3 1,122
7 Denbighshire 162.4 1,115
8 Conwy 162.3 1,115
9 Merthyr Tydfil 161.4 1,109
10 Rhondda Cynon Taf 160.7 1,104

Powys ranked as the cheapest place to refuel in Wales with an average petrol price per litre of 149.4p and an average annual mileage cost of a whopping £1,026. Bridgend ranked in 2nd place with an average petrol price of 156.3p per litre and Wrexham ranked as the 3rd cheapest place to refuel with an average price of 158.2p per litre. Drivers are furious over a sunglasses rule that can land you with a £5,000 fine - you can read about that here.

Ranking County Average petrol price per L (p)

Annual mileage cost (£)*

1

Powys

149.4 1,026
2 Bridgend 156.3 1,074
3 Wrexham 158.2 1,087
4 Cardiff 158.6 1,090
4 Pembrokeshire 158.6 1,090
6 Blaenau Gwent 159.5 1,096
7 Caerphilly 159.8 1,098
8 Gwynedd 159.9 1,099
9 Carmarthenshire 160.1 1,100
10 Swansea 160.4 1,102

Monmouthshire may have ranked as the most expensive place to refuel but it also ranked as the most affordable for its residents with it costing an estimated 9.4% of the average hourly salary in Monmouthshire. Cardiff ranked as the 2nd most affordable place to refuel in Wales, with petrol costing its residents 10.4% of their average hourly salary.

Ranking County

Average petrol price per L (p)

Cost of a litre of petrol vs average hourly salary? (%)

1

Monmouthshire

165.1 9.4%
2 Cardiff 158.6 10.4%
3 Carmarthenshire 160.1 10.8%
4 Isle of Anglesey 163.9 10.8%
5 Bridgend 156.3 11.0%
6 Wrexham 158.2 11.0%
7 Caerphilly 159.8 11.1%
8 Swansea 160.4 11.1%
9 Rhondda Cynon Taf 160.7 11.1%
10 Vale of Glamorgan 164.1 11.2%

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