Live prices
Cheapest petrol and diesel prices in Portsmouth
13 forecourts tracked in Portsmouth (13 reporting unleaded (E10), 13 reporting diesel (B7), 12 reporting premium (E5), 7 reporting super diesel). Prices last refreshed at 10:02pm on 18 October 2026.
The cheapest reported unleaded petrol (E10) in Portsmouth is £7.77 a gallon (170.9p per litre) at Sainsbury's, Fitzherbert Road, Portsmouth. The average across 13 forecourts currently reporting this grade is £7.92 a gallon (174.2p per litre), so choosing the cheapest rather than an average-priced forecourt saves about £1.65 on a 50-litre fill.
The average is unchanged since yesterday. The average has fallen 0.5p per litre since last week.
Prices last refreshed at 10:02pm on 18 October 2026, supplied through the official UK Government fuel price open data scheme and checked every 30 minutes.
Over the past 4 weeks the cheapest unleaded in Portsmouth has ranged between 166.9p and 172.9p per litre. The Portsmouth average has fallen 0.5p a litre over the past week.
Unleaded Prices
Unleaded (E10)
- Highest
- £8.09/gal177.9p/L
- Average
- £7.92/gal174.2p/L
- Lowest
- £7.77/gal170.9p/L
Diesel Prices
Diesel (B7)
- Highest
- £9.18/gal201.9p/L
- Average
- £9.03/gal198.7p/L
- Lowest
- £8.91/gal195.9p/L
Premium Unleaded Prices
Premium Unleaded (E5)
- Highest
- £9.31/gal204.9p/L
- Average
- £8.74/gal192.3p/L
- Lowest
- £8.31/gal182.9p/L
Super Diesel Prices
Super Diesel (SDV)
- Highest
- £10.22/gal224.9p/L
- Average
- £10.04/gal220.9p/L
- Lowest
- £9.72/gal213.9p/L
All forecourts in Portsmouth
13 forecourts in Portsmouth, with live prices and full addresses. Showing 1 to 13.
Diesel B7
Premium E5
BP, All Saints Self Service, Commercial Road, Portsmouth · PO1 4BU
Usually cheapest midnight to 5am, priciest noon to 5pm here
DirectionsDiesel B7
Premium E5
Super Diesel
Tesco Stores Ltd, Clement Attlee Way, Portsmouth · PO6 4SR
Usually cheapest 3pm to 5pm, priciest 8pm to 10pm here
DirectionsDiesel B7
Premium E5
The Bridge Shopping Centre, Somers Road North, Portsmouth, Hampshire · PO1 1SL
DirectionsDiesel B7
Diesel B7
Premium E5
Diesel B7
Premium E5
258 Havant Road, Hayling Island, Portsmouth, Hampshire · PO11 0LP
Usually cheapest 6am to 11am, priciest 2pm to 7pm here
DirectionsDiesel B7
Premium E5
Eastern Road Service Station, Eastern Road, Portsmouth · PO3 6QB
DirectionsDiesel B7
Premium E5
Super Diesel
Diesel B7
Premium E5
Super Diesel
Diesel B7
Premium E5
Super Diesel
Diesel B7
Premium E5
Super Diesel
Diesel B7
Premium E5
Super Diesel
Eastern Road, Portsmouth, Hampshire · PO6 1UW
Usually cheapest midnight to 5am, priciest 5pm to 10pm here
DirectionsDiesel B7
Premium E5
Super Diesel
Search near Portsmouth
Ask the fuel analyst
Answers come straight from recorded official price data, refreshed every 30 minutes.
Cheapest reported unleaded
Sainsbury's
Fitzherbert Road, Portsmouth
170.9p/L
Cheapest reported diesel
All Saints Service Station
BP, All Saints Self Service, Commercial Road, Portsmouth
192.9p/L
By fuel grade in Portsmouth
Nearby areas
Save more as a driver
Prices are sourced from official UK government fuel-price data (Open Government Licence v3.0). Updated every 30 minutes.
Questions about fuel prices in Portsmouth
- What is the average petrol price in Portsmouth?
- The average unleaded (E10) petrol price in Portsmouth is currently 174.2p per litre (approx. £7.92/gal), based on live data from 13 forecourts reporting this grade. Prices are updated every 30 minutes from official UK government data.
- What is the average diesel price in Portsmouth?
- The average diesel (B7) price in Portsmouth is currently 198.7p per litre (approx. £9.03/gal). This is based on live data from forecourts in the area, updated every 30 minutes.
- Which is the cheapest petrol station in Portsmouth?
- Sainsbury's at Fitzherbert Road, Portsmouth currently has the cheapest reported unleaded petrol in Portsmouth at 170.9p per litre (approx. £7.77/gal). Prices change regularly, so check this page for the latest.
- Which is the most expensive petrol station in Portsmouth?
- According to official UK government fuel price data, Shell Farlington (PO6 1UW) currently has the highest reported unleaded (E10) price in Portsmouth at 177.9p per litre (approx. £8.09/gal). Prices are refreshed every 30 minutes, so this can change through the day.
- How do I find the cheapest fuel near Portsmouth?
- 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.