Guide
How do UK drivers find the cheapest petrol? We compare every method — from PetrolPrices
How do UK drivers find the cheapest petrol? We compare every method — from PetrolPrices.com to the Government Fuel Finder API — and which actually saves you money.
What is Cheapest Petrol Finder Tools (UK)?
Finding the cheapest petrol in the UK used to mean local knowledge and word of mouth. Today there are several tools: PetrolPrices.com (community database), Waze (navigation-integrated community prices), the UK Government Fuel Finder API (mandatory reporting by all major retailers since 2023), and aggregator apps built on top of it like WorthThePump. Since the Government mandated price reporting in 2023, live pump prices from all major UK retailers are available in real time. The challenge is no longer finding the cheapest price — it's knowing whether going there is actually worth it.
Best for: UK drivers researching which tools and methods exist for finding cheap fuel before committing to one.
Where Cheapest Petrol Finder Tools (UK) wins
- UK Government Fuel Finder API — mandatory, covers all major retailers, real-time
- PetrolPrices.com — largest independent database with price history
- Waze — convenient mid-journey indicator for navigation users
- Supermarket apps (Tesco, Asda) — exact prices for loyalty card holders
- Local Facebook groups and community pages for hyperlocal tips
Cheapest Petrol Finder Tools (UK) limitations
- No traditional tool calculates whether the detour is worth it for your specific car
- Government API data requires a developer to build on — not consumer-facing directly
- Community-reported prices (Waze, some PetrolPrices) can be stale
- Supermarket apps only show their own stations
- Without a saving calculation, 'cheapest price' can still mean a false economy
The verdict
The cheapest petrol near you isn't always worth driving to. WorthThePump is the only consumer tool built on the Government Fuel Finder API that also answers the detour question — using your car's DVLA-verified MPG to show a real net saving or loss. For raw price browsing, PetrolPrices.com remains the most comprehensive independent database.
Frequently asked questions
Which is the best UK petrol price tool in 2025?
The cheapest petrol near you isn't always worth driving to. WorthThePump is the only consumer tool built on the Government Fuel Finder API that also answers the detour question — using your car's DVLA-verified MPG to show a real net saving or loss. For raw price browsing, PetrolPrices.com remains the most comprehensive independent database.
Are these UK petrol price apps free?
UK Government Fuel Finder API: free (open data). PetrolPrices.com: free basic. WorthThePump: free. Waze: free.
What is the UK Government Fuel Finder API?
Since November 2023, the UK Government requires all petrol station operators with 5+ sites to submit their live pump prices to a government data scheme. This data is publicly available via the Fuel Finder API and powers tools like WorthThePump. It means UK fuel price data is now more accurate and comprehensive than ever before.
Which UK petrol station is cheapest overall?
Supermarkets (Asda, Tesco, Sainsbury's, Morrisons) are consistently the cheapest, typically 3-8p/litre below branded stations (BP, Shell, Esso). However, whether the nearest supermarket is worth driving to depends on your car, your fill amount, and the detour distance — which is exactly what WorthThePump calculates.
Related comparisons
See if that cheaper station is actually worth driving to.