Embed

Cheapest Petrol & Diesel in St Thomas Today

☆ Save

Last updated: · Prices refresh every 30 minutes from the UK government's Fuel Finder service.

Cheapest Petrol in St Thomas

Area average: 149.4p — save up to 0.5p/litre

Cheapest Diesel in St Thomas

Area average: 160.9p — save up to 3.0p/litre

There are 2 fuel stations in St Thomas reporting live prices via the UK government's Fuel Finder service. Unleaded petrol (E10) averages 149.4p per litre across 2 stations. Diesel (B7) averages 160.9p across 2 stations. Unleaded is 1.7p below the national average of 151.1p.

Use our fuel station finder to find the most economical place to fill up near you, or calculate the fuel cost of a longer trip from St Thomas.

Fuel Stations in St Thomas

Station Postcode E10 E5 B7 SDV
EG On The Move, Swansea St Thomas SA1 8PA 148.9p Cheapest 168.9p 157.9p Cheapest 177.9p Cheapest
Green Road Service Station, Portsmouth St Thomas PO5 4DY 149.9p 165.9p Cheapest 163.9p 179.9p

Station Map

Average Petrol and Diesel Prices in St Thomas (pence per litre)

Unleaded (E10)
149.4p
2 stations
±0.5p std dev
1.7p below national
Super Unleaded (E5)
167.4p
2 stations
±1.5p std dev
1.6p below national
Diesel (B7)
160.9p
2 stations
±3.0p std dev
4.0p below national
Premium Diesel
178.9p
2 stations
±1.0p std dev
6.7p below national

30-Day Price Trend in the Swansea Region (pence per litre)

Daily averages across all stations in the Swansea postcode area over the last 30 days. St Thomas sits within this region.

What does fuel cost a typical driver in St Thomas?

At current prices, a typical driver covering 12000 miles a year in a petrol car averaging 35 mpg spends about £2329/year on fuel in St Thomas (at 149.4p/L). That's £26 less than the UK average of £2355. Across the wider Swansea (SA) postcode area petrol averages 150.3p/L, working out at £2343/year.

A diesel driver doing the same 12000 miles at 50 mpg spends about £1756/year at St Thomas's average diesel price of 160.9p/L. That's £44 less than the UK average of £1799. Across the wider Swansea (SA) postcode area diesel averages 162.2p/L — £1770/year.

Choose the right station — save £££

The cheapest petrol in St Thomas is 148.9p/L and the most expensive is 149.9p/L — a 1.0p/L spread. Filling a 60‑litre tank at the cheapest vs the dearest saves £0.60.

For diesel the spread is 6.0p/L (157.9p cheapest, 163.9p dearest) — £3.60 saved on a 60‑litre fill.

Fuel Prices by Brand in St Thomas

Average prices and cheapest station for each fuel brand in St Thomas.

EG On The Move Fuel Prices in St Thomas

There is 1 EG On The Move forecourt in St Thomas. Petrol is 148.9p/L0.5p below the St Thomas average. Diesel is 157.9p/L (3.0p below town avg). Live prices: EG On The Move, Swansea. EG On The Move fuel prices across the UK →

Show station details
StationPostcodeE10B7
EG On The Move, Swansea SA1 8PA 148.9p 157.9p

Green Road Service Station Fuel Prices in St Thomas

There is 1 Green Road Service Station forecourt in St Thomas. Petrol is 149.9p/L0.5p above the St Thomas average. Diesel is 163.9p/L (3.0p above town avg). Live prices: Green Road Service Station, Portsmouth.

Show station details
StationPostcodeE10B7
Green Road Service Station, Portsmouth PO5 4DY 149.9p 163.9p

Embed live prices on your website

Free · Always up-to-date · No registration needed. Local news site, community page, or just want to share live prices? Copy the code below.

Frequently Asked Questions

The cheapest unleaded petrol (E10) in St Thomas today is 148.9p per litre at EG ON THE MOVE, SA1 8PA. The average across 2 stations is 149.4p. Prices are sourced from the UK government's Fuel Finder service and updated every 30 minutes.

The cheapest diesel (B7) in St Thomas today is 157.9p per litre at EG ON THE MOVE, SA1 8PA. The average across 2 stations is 160.9p. Prices are sourced from the UK government's Fuel Finder service.

The average unleaded (E10) price in St Thomas is 149.4p per litre from 2 stations. The national average is 151.1p, so St Thomas is 1.7p below the national average.

The average diesel (B7) price in St Thomas is 160.9p per litre from 2 stations. The national average is 164.9p, so St Thomas is 4.0p below the national average.

There are currently 2 fuel stations reporting prices in St Thomas. This includes supermarket forecourts, independent stations, and branded sites.

Fuel prices on MPG Calc are updated every 30 minutes using official data from the UK government's Fuel Finder service. All retailers with 250+ filling stations are required by law to report their prices, covering the vast majority of UK forecourts.