Distance from Carmarthen to London
The distance between Carmarthen, United Kingdom and London, United Kingdom is 291 km (181 miles) in a straight line. If a road route exists, expect roughly 363 km (226 miles) by car — around 4 h 32 min of driving.
| Measure | Value |
|---|---|
| Straight-line distance | 291 km / 181 mi |
| Road distance (estimate) | ≈ 363 km / 226 mi |
| Driving time (estimate) | ≈ 4 h 32 min |
| Flight time (estimate) | ≈ 51 min |
Road distance and travel times are estimates based on the straight-line distance (road factor 1.25, average speed 80 km/h) — actual routes vary.
| Place | Latitude | Longitude |
|---|---|---|
| Carmarthen, United Kingdom | 51.856466511 | -4.30576489 |
| London, United Kingdom | 51.50740836 | -0.127698693 |
Frequently asked questions
How far is London from Carmarthen?
The straight-line (air) distance from Carmarthen, United Kingdom to London, United Kingdom is 291 km (181 miles). By road it is roughly 363 km (226 miles), depending on the route.
How long does it take to drive from Carmarthen to London?
Approximately 4 h 32 min, assuming an 80 km/h average over an estimated road distance of 363 km. Actual time depends on the route, traffic and border crossings.
How long is the flight from Carmarthen to London?
A direct flight covers 291 km in about 51 min at typical cruise speed, plus airport time. Not all city pairs have direct flights.
How do I calculate distances for a whole list of locations?
Upload a CSV or Excel spreadsheet to the batch distance calculator — it computes the distance for every origin–destination row at once. The first records are free to try.
Related distances
Distance from London to Carmarthen (reverse route)