Live prices
Cheapest diesel (B7) in Welwyn
1 station reporting diesel (B7), ranked cheapest first.
The cheapest reported diesel (B7) in Welwyn is £9.04 a gallon (198.9p per litre) at BP, Welwyn By-pass, Welwyn, Hertfordshire (AL6 9HP). That local average is 2.7p per litre above the UK average of 196.2p.
The average is unchanged since yesterday. The average has risen 5.0p per litre since last week.
Prices last refreshed at 5:02pm on 20 September 2026, supplied through the official UK Government fuel price open data scheme and checked every 30 minutes.
| Station | Unleaded | Diesel | Premium | Super diesel | Updated |
|---|---|---|---|---|---|
 Nodeway Sf Connect (AL6 9HP)24hWelwyn By-pass, Welwyn, Hertfordshire | £8.00175.9p | £9.04198.9p | £8.95196.9p | £10.00219.9p | 21 mins ago |
Prices are supplied through the official UK Government fuel price open data scheme (Open Government Licence v3.0) and checked every 30 minutes. Only stations reporting diesel (B7) appear here.
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Questions about diesel (B7) in Welwyn
- Where is the cheapest diesel (B7) in Welwyn?
- The cheapest reported diesel (B7) in Welwyn is 198.9p per litre at BP, Welwyn By-pass, Welwyn, Hertfordshire (AL6 9HP). The average across 1 forecourts reporting this grade is 198.9p per litre. Prices were last refreshed at 5:02pm on 20 September 2026 from official UK Government fuel price data.
- How many stations in Welwyn sell diesel (B7)?
- 1 forecourt in Welwyn currently reports a price for diesel (B7) through the official UK fuel price open data scheme. Stations that do not sell or report this grade are not counted.