Live prices
Cheapest petrol and diesel near WD18
27 forecourts within 5 miles of the centre of the WD18 postcode district, 1 of them inside WD18 itself.
The cheapest reported unleaded petrol (E10) within 5 miles of the centre of WD18 is £7.22 a gallon (158.9p per litre) at Costco, Hartspring Lane, Watford, Watford, Hertfordshire (WD25 8JS). The average across 27 forecourts currently reporting this grade is £7.79 a gallon (171.4p per litre), so choosing the cheapest rather than an average-priced forecourt saves about £6.25 on a 50-litre fill. That local average is 1.0p per litre below the UK average of 172.4p.
The average has fallen 4.5p per litre since yesterday. The average has risen 1.5p per litre since last week.
Prices last refreshed at 8:01pm on 19 September 2026, supplied through the official UK Government fuel price open data scheme and checked every 30 minutes.
Unleaded Prices
Unleaded (E10)
- Highest
- £9.01/gal198.2p/L
- Average
- £7.79/gal171.4p/L
- Lowest
- £7.22/gal158.9p/L
Diesel Prices
Diesel (B7)
- Highest
- £9.51/gal209.1p/L
- Average
- £8.83/gal194.3p/L
- Lowest
- £8.18/gal179.9p/L
Premium Unleaded Prices
Premium Unleaded (E5)
- Highest
- £9.31/gal204.9p/L
- Average
- £8.60/gal189.2p/L
- Lowest
- £7.68/gal168.9p/L
Super Diesel Prices
Super Diesel (SDV)
- Highest
- £10.22/gal224.9p/L
- Average
- £9.79/gal215.4p/L
- Lowest
- £9.31/gal204.9p/L
Every station near WD18, cheapest unleaded first
| Station | Distance | Unleaded | Diesel | Premium | Super diesel | Updated |
|---|---|---|---|---|---|---|
 Costco Wholesale Watford (WD25 8JS)Hartspring Lane, Watford, Watford, Hertfordshire | 2.5 miles | £7.22158.9p | £8.18179.9p | £7.68168.9p | ---- | 18h ago |
 Sainsburys Dome Roundabout (WD25 9JS)24hCow Lane, Watford | 2.5 miles | £7.36161.9p | £8.27181.9p | £7.91173.9p | ---- | 18h ago |
 Asda Watford Supercentre (WD24 7RT)24hOdhams Industrial Estate, ST Albans Road, Watford | 2.4 miles | £7.40162.7p | £8.26181.7p | ---- | ---- | 18h ago |
 Watford Extra - Petrol Filling Station (WD17 2BD)24h239-241 Lower High ST, Watford | 1.2 miles | £7.45163.9p | £8.31182.9p | £7.95174.9p | ---- | 18h ago |
| Asda Sandy Lodge Express Petrol (HA6 2HU)24hSandy Lodge, Northwood | 1.2 miles | £7.45163.9p | £8.59188.9p | £8.31182.9p | £9.45207.9p | 18h ago |
| New Road Service Station (WD3 3EP)New Road Service Station, 50-52, New Road, Croxley Green, Rickmansworth | 1.6 miles | £7.48164.5p | £8.66190.5p | ---- | ---- | 18h ago |
 Shell Little Waitrose Sceptre (WD24 7RU)ST Albans Road, Watford, Hertfordshire | 2.4 miles | £7.50164.9p | £8.36183.9p | £8.41184.9p | £9.31204.9p | 18h ago |
 South Oxhey Esso Express (WD19 6EG)Prestwick RD, Watford | 1.9 miles | £7.63167.9p | £8.81193.9p | £8.31182.9p | £9.45207.9p | 18h ago |
| Bushey Heath Esso Express (WD23 1EL)High Road, Bushey | 3.4 miles | £7.68168.9p | £8.81193.9p | £8.36183.9p | £9.45207.9p | 18h ago |
| Shell Co-op Hunton Bridge (WD4 8QS)24hWatford Road, Kings Langley, Hertfordshire | 2.8 miles | £7.72169.9p | £8.72191.9p | £8.86194.9p | £9.77214.9p | 18h ago |
| Rontec Watford (WD24 4AE)24hST Albans Road, Watford, Hertfordshire | 1.5 miles | £7.72169.9p | £8.81193.9p | £8.59188.9p | £9.68212.9p | 18h ago |
| Asda Sheepcot Express Petrol (WD25 7LW)24hNorth Orbital Road, ST Albans | 3.1 miles | £7.77170.9p | £9.00197.9p | £8.63189.9p | £9.86216.9p | 18h ago |
 Bury Street Sf Connect (HA4 7TW)24hBury Street, Ruislip, Greater London | 4.3 miles | £7.81171.9p | £9.00197.9p | £8.77192.9p | £9.95218.9p | 18h ago |
| Mfg Pinner (HA5 2ET)24hHigh Road, Eastcote / Pinner, Middlesex | 4.5 miles | £7.81171.9p | £9.00197.9p | £8.63189.9p | £9.82215.9p | 18h ago |
| Harvest Energy Classic (AL2 3RS)24h1 Old Watford Road, Bricket Wood, ST Albans | 4.7 miles | £7.81171.9p | £8.81193.9p | ---- | ---- | 18h ago |
| Mfg Primrose (WD4 8HR)Primrose Hill, Kings Langley, Hertfordshire | 4.6 miles | £7.81171.9p | £8.91195.9p | £8.63189.9p | £9.82215.9p | 18h ago |
| Northwood Hills Esso Express (HA5 2PA)Joel ST, Pinner | 3.5 miles | £7.81171.9p | £8.95196.9p | £8.50186.9p | ---- | 18h ago |
| Asda Elstree Hill Express Petrol (WD6 3BL)24hElstree Hill South, Borehamwood | 4.8 miles | £7.86172.9p | £8.91195.9p | £8.72191.9p | £9.77214.9p | 18h ago |
| Shell Pinner (HA5 2AF)21 Pinner Green, Pinner, Middlesex | 3.6 miles | £7.95174.9p | £9.09199.9p | £9.09199.9p | £10.22224.9p | 18h ago |
| Mfg Ten Pin (HA2 6AE)24hStation Road, North Harrow, Middlesex | 4.9 miles | £7.95174.9p | £9.18201.9p | £8.63189.9p | £9.82215.9p | 18h ago |
| Mfg High Weald (HA3 5EA)24h185 High Street, Wealdstone, Middlesex | 4.8 miles | £7.95174.9p | £9.09199.9p | £8.63189.9p | £9.82215.9p | 18h ago |
| Bp Harvest Energy Colne (WD18 0FS)24hWiggenhall Road, Watford, Buckinghamshire | 0.9 miles | £8.00175.9p | £9.04198.9p | £8.95196.9p | ---- | 18h ago |
| Mfg Rickmansworth (WD3 7BG)24hMoneyhill Parade, Uxbridge RD / Rickmansworth, Hertfordshire | 3 miles | £8.00175.9p | £9.09199.9p | £8.63189.9p | £9.82215.9p | 18h ago |
| Mill End Sf Connect (WD3 8DS)24h283 Uxbridge Road, Rickmansworth, Hertfordshire | 3.3 miles | £8.04176.9p | £9.09199.9p | £9.00197.9p | £10.04220.9p | 18h ago |
| Shell Croxley Green (WD3 3ED)24h185-187 Watford Road, Rickmansworth, Hertfordshire | 0.9 miles | £8.04176.9p | £9.00197.9p | £9.31204.9p | £10.00219.9p | 18h ago |
| Shell Co-op Chorleywood (WD3 5SE)24hRickmansworth Road, Rickmansworth, Hertfordshire | 3.7 miles | £8.09177.9p | £9.09199.9p | £9.31204.9p | £10.22224.9p | 18h ago |
| Biggerstaff's Garage (WD3 6AR)Biggerstaffs Garage, Green End, Dimmocks Lane, Sarratt, Rickmansworth, WD3 6AR, Rickmansworth | 3.9 miles | £9.01198.2p | £9.51209.1p | ---- | ---- | 18h ago |
The market shown is a fixed 5-mile radius from the centre of the WD18 postcode district. Not every station reports every fuel grade, so grade averages state how many stations they cover. Prices are supplied through the official UK Government fuel price open data scheme (Open Government Licence v3.0) and checked every 30 minutes.
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Answers come straight from recorded official price data, refreshed every 30 minutes.
By fuel grade near WD18
Worth the drive?
Filling 50 litres at the cheapest reported station rather than an average-priced one saves about £6.25 today.
Questions about fuel prices near WD18
- Where is the cheapest petrol near WD18?
- The cheapest reported unleaded petrol (E10) within 5 miles of the centre of WD18 is 158.9p per litre at Costco, Hartspring Lane, Watford, Watford, Hertfordshire (WD25 8JS). The local average is 171.4p across 27 forecourts reporting this grade. Prices were last refreshed at 8:01pm on 19 September 2026 from official UK Government fuel price data.
- Where is the cheapest diesel near WD18?
- The cheapest reported diesel (B7) within 5 miles of the centre of WD18 is 179.9p per litre at Costco, Hartspring Lane, Watford, Watford, Hertfordshire (WD25 8JS). The local average is 194.3p per litre.
- How often are fuel prices in WD18 updated?
- Prices are supplied by fuel retailers through the official UK Government fuel price open data scheme and checked every 30 minutes. Each station row shows when its price was last recorded.