Petrol and diesel prices in London

Average prices in London

Most of the prices behind these averages are more than 3 days old.

From 473 forecourts with a usable price in our price data, updated 3:17am on 2 November UK time.

Cheapest forecourts in London now

Each forecourt's latest price from our price data. A price far from the UK median is left out, and older prices show their age.

Cheapest and dearest towns

The cheapest town for petrol in London is Ilford, at 169.9p. The dearest is Hillingdon, at 174.3p.

Each town covers the forecourts within its page's radius, so towns close together share some. A town needs 5 petrol prices to be listed. Town figures from 2:03am on 2 November.

Boroughs in Greater London

Across the 31 boroughs with a petrol average, it runs from 169.5p in Enfield to 175.3p in Westminster.

A dash means fewer than 5 prices to average. Each forecourt counts once, in the county of its nearest town.

Supermarkets against the major brands

Supermarket petrol averages 169.6p over 70 forecourts in London, 2.5p cheaper than the major brands' 172.1p over 380.

Supermarket diesel averages 196.4p over 66 forecourts in London, 3.7p cheaper than the major brands' 200.1p over 336.

Most of the prices behind these averages are more than 3 days old.

Compare every brand ·Supermarket fuel against the big brands

Motorway services

London has 3 motorway services forecourts with prices, too few to average.

Fuel prices on every motorway

Diesel against petrol

Diesel costs 27.8p a litre more than petrol in London. That is a gap 1.1p wider than the UK's 26.7p.

Why is diesel more expensive than petrol?

In the monthly report

In September 2026, London was the joint 3rd dearest of the 12 UK regions for petrol, averaging 170.8p. For diesel it was the 3rd dearest, at 194.3p.

Read the September 2026 report

Prices in every UK region

Questions about fuel prices in London

What is the average price of petrol in London?

Petrol (E10) averages 171.9p a litre in London, and diesel (B7) 199.7p, from 473 forecourts with a usable price.

Is fuel cheaper in London than the rest of the UK?

Petrol here is about the same as the UK average of 171.7p, the 5th cheapest of the 12 UK regions. Diesel is 1.3p dearer than the UK average of 198.4p, the 3rd dearest of the 12 UK regions.

Where is the cheapest petrol in London?

The cheapest petrol we list in London is 162.9p a litre at MFG Cricklewood in Cricklewood. The cheapest town on average is Ilford, at 169.9p.

Is supermarket fuel cheaper in London?

Supermarket petrol averages 169.6p over 70 forecourts in London, 2.5p cheaper than the major brands' 172.1p over 380.

How these figures work

London here is Greater London: the 32 boroughs and the City.

London counts the inner London postcode areas (E, EC, N, NW, SE, SW, W, WC) and the outer districts inside Greater London. Those include CR0 Croydon, BR1 Bromley, KT1 Kingston and RM1 Romford.

Each average uses every forecourt's latest price for the fuel while it is under 30 days old.

A price far from the UK median is counted but left out of the average, and a figure needs at least 5 prices.

Supermarkets and major brands are the groups on our brands page, each brand's own forecourts only. Motorway services are left out of both.

Each forecourt counts once in a county: the county of the nearest town we have a page for, within 20 miles. A county is listed under the region holding most of its forecourts.

Town figures are worked out each night over each town page's radius.

A town in a London borough is listed in London. Any other town is listed by its postcode and county.

Prices more than 3 days old still count, and we say so when most of a figure rests on them.

Every figure here comes from our price data, which explains where the prices come from.