Live prices
Cheapest petrol and diesel prices in Southampton
34 forecourts tracked in Southampton (34 reporting unleaded (E10), 34 reporting diesel (B7), 31 reporting premium (E5), 19 reporting super diesel). Prices last refreshed at 11:31pm on 18 October 2026.
The cheapest reported unleaded petrol (E10) in Southampton is £7.68 a gallon (168.9p per litre) at Costco, Regents Park Road, Southampton, Southampton, Hampshire. The average across 34 forecourts currently reporting this grade is £8.06 a gallon (177.3p per litre), so choosing the cheapest rather than an average-priced forecourt saves about £4.20 on a 50-litre fill. That local average is 3.1p per litre above the UK average of 174.2p.
The average is unchanged since yesterday. The average has risen 0.1p per litre since last week.
Prices last refreshed at 11:31pm on 18 October 2026, supplied through the official UK Government fuel price open data scheme and checked every 30 minutes.
At 168.9p per litre, the cheapest unleaded in Southampton is the highest we have recorded here in 4 weeks. The Southampton average has held steady over the past week.
Unleaded Prices
Unleaded (E10)
- Highest
- £8.91/gal195.9p/L
- Average
- £8.06/gal177.3p/L
- Lowest
- £7.81/gal171.9p/L
Diesel Prices
Diesel (B7)
- Highest
- £9.91/gal217.9p/L
- Average
- £9.16/gal201.6p/L
- Lowest
- £8.86/gal194.9p/L
Premium Unleaded Prices
Premium Unleaded (E5)
- Highest
- £9.86/gal216.9p/L
- Average
- £8.91/gal196.1p/L
- Lowest
- £8.36/gal183.9p/L
Super Diesel Prices
Super Diesel (SDV)
- Highest
- £10.86/gal238.9p/L
- Average
- £10.12/gal222.7p/L
- Lowest
- £9.91/gal217.9p/L
All forecourts in Southampton
34 forecourts in Southampton, with live prices and full addresses. Showing 31 to 34.
Chilworth Roundabout, Southampton, Hampshire · SO16 7LQ
DirectionsDiesel B7
Premium E5
Super Diesel
Diesel B7
Premium E5
Super Diesel
Diesel B7
Premium E5
Super Diesel
Diesel B7
Premium E5
Super Diesel
Search near Southampton
Ask the fuel analyst
Answers come straight from recorded official price data, refreshed every 30 minutes.
Cheapest reported unleaded
Costco
Regents Park Road, Southampton, Southampton, Hampshire
168.9p/L
Cheapest reported diesel
Costco
Regents Park Road, Southampton, Southampton, Hampshire
194.9p/L
By fuel grade in Southampton
Nearby areas
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Prices are sourced from official UK government fuel-price data (Open Government Licence v3.0). Updated every 30 minutes.
Questions about fuel prices in Southampton
- What is the average petrol price in Southampton?
- The average unleaded (E10) petrol price in Southampton is currently 177.3p per litre (approx. £8.06/gal), based on live data from 34 forecourts reporting this grade. Prices are updated every 30 minutes from official UK government data.
- What is the average diesel price in Southampton?
- The average diesel (B7) price in Southampton is currently 201.6p per litre (approx. £9.16/gal). This is based on live data from forecourts in the area, updated every 30 minutes.
- Which is the cheapest petrol station in Southampton?
- Costco at Regents Park Road, Southampton, Southampton, Hampshire currently has the cheapest reported unleaded petrol in Southampton at 168.9p per litre (approx. £7.68/gal). Prices change regularly, so check this page for the latest.
- Which is the most expensive petrol station in Southampton?
- According to official UK government fuel price data, Rownhams West Mwsa (SO16 8AP) currently has the highest reported unleaded (E10) price in Southampton at 195.9p per litre (approx. £8.91/gal). Prices are refreshed every 30 minutes, so this can change through the day.
- How do I find the cheapest fuel near Southampton?
- Use the search box above to enter your postcode. fuel.co.uk will show you every forecourt ranked cheapest first, with live prices updated every 30 minutes from the GOV.UK Fuel Finder.