Petrol prices in CM20
Every forecourt in the CM20, Chelmsford postcode district, cheapest first, with live prices from the government Fuel Finder feed — covering Harlow, East of England.
Petrol stations in CM20 (4)
Cheapest first. Prices update through the day.
BP, HARLOWCheapestHARLOW£1.70E10£1.94B7ESSO, HARLOWHARLOW£1.70E10£1.92B7TESCO, HARLOWHARLOW£1.70E10£1.91B7SAINSBURYS, HARLOWHARLOW£1.71E10£1.92B7Is anywhere nearby cheaper?
Neighbouring districts, with the fuel the drive itself burns already subtracted — a 45 mpg car, there and back.
SG12Stevenage7.1 km away · 8.8 mile round trip · 2 forecourts£1.63saves 4.4p a litreThe saving shown is what is left after the detour: the pump price plus the extra fuel burned getting there and back, spread across a 55-litre fill. A forecourt that is 4p cheaper eight miles away is not 4p cheaper. The arithmetic is here.
Nearby postcode districts
Closest first, with today’s typical price.
About fuel prices in CM20
CM20 is part of the CM postcode area, which covers Chelmsford, and its forecourts sit mainly in Harlow in East of England. We track 4 forecourts here across 4 brands, of which 2 are supermarkets.
Supermarket forecourts usually anchor local pricing: where one exists, the independents nearby tend to price close to it, and where none does, prices drift upward. CM20 has 2, which is why the local spread is 1.0p. Across East of England as a whole the median is £1.68 — see the whole region.
Every price here comes from the government Fuel Finder scheme, which since February 2026 has required each forecourt to report a change within thirty minutes. For the forecourts nearest a specific address rather than a whole district, search your full postcode.
Common questions about CM20
How much is petrol in CM20 today?
The typical CM20 forecourt is charging £1.70 a litre for E10 petrol — £93.44 for a 55-litre tank. The cheapest of the 4 forecourts reporting a price in CM20 is at £1.70, and the dearest £1.71.
Where is the cheapest petrol in CM20?
BP, HARLOW in HARLOW at £1.70 a litre. That is 1.0p below the dearest forecourt in CM20. Prices change through the day, so check before you set off.
Is CM20 cheaper or dearer than the rest of the UK?
CM20 runs 3.0p above the UK median of £1.67, and sits in East of England, where the regional median is £1.68. Local competition drives most of that: districts with two or more supermarket forecourts close together price lower than districts where the nearest alternative is a drive away.
Is it worth driving to a cheaper postcode from CM20?
Right now, yes — SG12 has fuel at £1.63, and even after the 14.2 km round trip burns its own fuel, you are about 4.4p a litre better off. That is roughly £2.40 on a tank. Anything closer than that is not worth a special journey, though it may be worth routing past.
How many petrol stations are there in CM20?
4 forecourts, from 4 different brands, including 2 supermarket forecourts. Every one reports its prices to the government Fuel Finder scheme within thirty minutes of a change.