Live prices
Cheapest petrol and diesel prices in Watford
8 forecourts tracked in Watford (8 reporting unleaded (E10), 8 reporting diesel (B7), 7 reporting premium (E5), 3 reporting super diesel). Prices last refreshed at 11:04pm on 4 November 2026.
The cheapest reported unleaded petrol (E10) in Watford is £7.36 a gallon (161.9p per litre) at Costco, Hartspring Lane, Watford, Watford, Hertfordshire. The average across 8 forecourts currently reporting this grade is £7.64 a gallon (168.0p per litre), so choosing the cheapest rather than an average-priced forecourt saves about £3.05 on a 50-litre fill. That local average is 3.0p per litre below the UK average of 171.0p.
The average has fallen 0.3p per litre since yesterday. The average has fallen 0.6p per litre since last week.
Prices last refreshed at 11:04pm on 4 November 2026, supplied through the official UK Government fuel price open data scheme and checked every 30 minutes.
At 161.9p per litre, the cheapest unleaded in Watford is the lowest we have recorded here in 4 weeks. The Watford average has fallen 0.6p a litre over the past week.
Unleaded Prices
Unleaded (E10)
- Highest
- £7.72/gal169.9p/L
- Average
- £7.64/gal168.0p/L
- Lowest
- £7.62/gal167.7p/L
Diesel Prices
Diesel (B7)
- Highest
- £8.72/gal191.9p/L
- Average
- £8.62/gal189.6p/L
- Lowest
- £8.53/gal187.7p/L
Premium Unleaded Prices
Premium Unleaded (E5)
- Highest
- £8.63/gal189.9p/L
- Average
- £8.38/gal184.3p/L
- Lowest
- £8.13/gal178.9p/L
Super Diesel Prices
Super Diesel (SDV)
- Highest
- £9.54/gal209.9p/L
- Average
- £9.45/gal207.9p/L
- Lowest
- £9.36/gal205.9p/L
All forecourts in Watford
8 forecourts in Watford, with live prices and full addresses. Showing 1 to 8.
Hartspring Lane, Watford, Watford, Hertfordshire · WD25 8JS
DirectionsDiesel B7
Premium E5
Diesel B7
Diesel B7
Premium E5
Diesel B7
Premium E5
Diesel B7
Premium E5
Super Diesel
Wiggenhall Road, Watford, Buckinghamshire · WD18 0FS
Usually cheapest 4pm to 9pm, priciest midnight to 5am here
DirectionsDiesel B7
Premium E5
Diesel B7
Premium E5
Super Diesel
Diesel B7
Premium E5
Super Diesel
Search near Watford
Ask the fuel analyst
Answers come straight from recorded official price data, refreshed every 30 minutes.
Cheapest reported unleaded
Costco
Hartspring Lane, Watford, Watford, Hertfordshire
161.9p/L
Cheapest reported diesel
Costco
Hartspring Lane, Watford, Watford, Hertfordshire
184.9p/L
By fuel grade in Watford
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 Watford
- What is the average petrol price in Watford?
- The average unleaded (E10) petrol price in Watford is currently 168.0p per litre (approx. £7.64/gal), based on live data from 8 forecourts reporting this grade. Prices are updated every 30 minutes from official UK government data.
- What is the average diesel price in Watford?
- The average diesel (B7) price in Watford is currently 189.6p per litre (approx. £8.62/gal). This is based on live data from forecourts in the area, updated every 30 minutes.
- Which is the cheapest petrol station in Watford?
- Costco at Hartspring Lane, Watford, Watford, Hertfordshire currently has the cheapest reported unleaded petrol in Watford at 161.9p per litre (approx. £7.36/gal). Prices change regularly, so check this page for the latest.
- Which is the most expensive petrol station in Watford?
- According to official UK government fuel price data, South Oxhey Esso Express (WD19 6EG) currently has the highest reported unleaded (E10) price in Watford at 169.9p per litre (approx. £7.72/gal). Prices are refreshed every 30 minutes, so this can change through the day.
- How do I find the cheapest fuel near Watford?
- 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.