London, the capital of the United Kingdom, lies along the Thames in southeast England at an average elevation of just 11 meters above sea level. The city is largely flat, with higher ground only in outer areas like Hampstead Heath at 134 m.
London sits just 11 m above sea level, very close to the ocean’s surface. At such low elevations the effect of altitude on air pressure and climate is minimal, though flooding and storm surges can be a greater concern.
Quick Facts
| Elevation (above sea level) | 11 m |
|---|---|
| Coordinates | 51.5074° N, 0.1278° W |
| Country | United Kingdom |
| Continent | Europe |
Compare elevations – nearby cities
| City | Elevation (m) | Country |
|---|---|---|
| Paris | 35 | France |
Frequently Asked Questions
How high is London above sea level?
London sits at an average elevation of 11 meters above sea level.
Is London at risk of flooding?
Yes, the Thames Barrier protects London from storm surges from the North Sea. Without it, significant parts of the city would be flood-prone.
Which part of London is highest?
Hampstead Heath in north London reaches approximately 134 meters above sea level, making it one of the city's highest points.