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Petrol Prices in Harpenden
Average today: unleaded 167.4p · diesel 189.4p ·
UK average 167.7p / 189.2p
Checked 10 September 2026 · retailer-reported prices, changes filed within 30 minutes
Harpenden trend: Unleaded ▲ 4.0p · 7d · Diesel ▲ 4.5p · 7d
The cheapest unleaded in Harpenden today is 166.9p
at Esso, Tes103 -105 Lower Luton Rd. Filling a 55-litre tank at the cheapest station instead of the priciest saves about £0.55.
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