Fuel prices
Petrol and diesel prices in Hertsmere
Average pump prices across 12 filling stations in Hertsmere, from the prices every UK forecourt must now publish under the government’s Fuel Finder scheme. Checked 16 Sept, 16:47.
- Average unleaded petrol 169.4p 2.3p below the UK average
- Average diesel 193.0p 1.6p below the UK average
- Cheapest petrol 158.9p Costco Wholesale Watford
- Filling stations 12 3 at supermarkets
Unleaded petrol averages 169.4p a litre across 11 forecourts in Hertsmere, 2.3p below the UK average. Diesel averages 193.0p, 1.6p below the UK average. The cheapest petrol is at Costco Wholesale Watford, 158.9p; the dearest is 189.9p. The cheapest diesel is there too, 177.9p.
Cheapest petrol and diesel in Hertsmere
| Filling station | Price |
|---|---|
 Costco Wholesale Watford Watford | 158.9p |
 Asda Elstree Allum Lane Borehamwood | 165.7p |
 Tesco Borehamwood Extra Borehamwood | 165.9p |
 MFG Morrisons Borehamwood Borehamwood | 165.9p |
| Tesco Potters Bar Superstore Potters Bar | 167.9p |
 Bushey Heath Esso Express Bushey | 168.9p |
| BP Clarendon Sf Connect Borehamwood | 168.9p |
| Esso MFG Potters Bar Potters Bar | 169.9p |
| BP Potters Bar Sf Connect Potters Bar | 169.9p |
| Esso Asda Elstree Hill Express Petrol Borehamwood | 171.9p |
| Filling station | Price |
|---|---|
| Costco Wholesale Watford Watford | 177.9p |
| Asda Elstree Allum Lane Borehamwood | 189.7p |
| Tesco Borehamwood Extra Borehamwood | 189.9p |
| MFG Morrisons Borehamwood Borehamwood | 189.9p |
| Tesco Potters Bar Superstore Potters Bar | 189.9p |
| Esso MFG Potters Bar Potters Bar | 192.9p |
| Esso Asda Elstree Hill Express Petrol Borehamwood | 193.9p |
| BP Clarendon Sf Connect Borehamwood | 193.9p |
| BP Potters Bar Sf Connect Potters Bar | 193.9p |
| Bushey Heath Esso Express Bushey | 195.9p |
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Supermarkets against other forecourts
Supermarket petrol is 1.1p a litre cheaper on average than at other forecourts in Hertsmere.
| Forecourts | Petrol | Diesel | Stations |
|---|---|---|---|
| Supermarkets | 166.6p | 189.9p | 3 |
| Other forecourts | 167.7p | 191.2p | 7 |
Council areas in Hertfordshire, cheapest first
Hertsmere is number 2 of 10 for petrol.
| Area | Petrol | Diesel |
|---|---|---|
| Watford | 166.6p | 187.0p |
| Hertsmere | 169.4p | 193.0p |
| Dacorum | 170.1p | 193.1p |
| Stevenage | 170.3p | 191.1p |
| Welwyn Hatfield | 172.5p | 195.3p |
| Three Rivers | 174.2p | 195.6p |
| St Albans | 174.3p | 195.2p |
| North Hertfordshire | 174.4p | 195.8p |
| East Hertfordshire | 175.2p | 197.2p |
| Broxbourne | 177.5p | 198.7p |
Every filling station in Hertsmere
| Filling station | Petrol | Diesel |
|---|---|---|
| Costco Wholesale Watford Watford | 158.9p | 177.9p |
| Asda Elstree Allum Lane Borehamwood | 165.7p | 189.7p |
| Tesco Borehamwood Extra Borehamwood · supermarket | 165.9p | 189.9p |
| MFG Morrisons Borehamwood Borehamwood · supermarket | 165.9p | 189.9p |
| Tesco Potters Bar Superstore Potters Bar · supermarket | 167.9p | 189.9p |
| Bushey Heath Esso Express Bushey | 168.9p | 195.9p |
| BP Clarendon Sf Connect Borehamwood | 168.9p | 193.9p |
| Esso MFG Potters Bar Potters Bar | 169.9p | 192.9p |
| BP Potters Bar Sf Connect Potters Bar | 169.9p | 193.9p |
| Esso Asda Elstree Hill Express Petrol Borehamwood | 171.9p | 193.9p |
| BP South Mimms Sf Connect Mwsa Potters Bar · motorway | 189.9p | – |
| Welcome Break South Mimms Truckstop South Mimms · motorway | – | 214.9p |
A dash means no current price: none reported, not changed for over two weeks, or not believable.
Data sources and methodology
| Figures | Source | Period | Records | Updated |
|---|---|---|---|---|
| Forecourt prices | Fuel Finder open data Fuel Finder statutory scheme ONS Postcode Directory Office for National Statistics | Prices at 16:47 on 16 September 2026 | 8,070 filling stations | 16 September 2026 |
- Averages use unleaded (E10) and standard diesel (B7) prices at open forecourts, leaving out prices unchanged for over two weeks or far from every other forecourt. They count each forecourt once, not by how much fuel it sells.
- Forecourts are placed in council areas from their postcode, using the ONS Postcode Directory.
Source: Fuel Finder, the UK government’s statutory fuel price scheme.
Source: Office for National Statistics licensed under the Open Government Licence v3.0. Contains OS data © Crown copyright and database right 2026. Contains Royal Mail data © Royal Mail copyright and database right 2026.