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London Coordinates

England, United Kingdom · Elevation 11m

Quick answer: London is located at 51.507400, -0.127800 (N, W).

Different tools require different formats — Garmin devices default to DDM, military maps use MGRS, topo maps use UTM, and web apps expect Decimal Degrees. Copy whichever format your device or application needs. Click any format abbreviation to learn how it works.

All Coordinate Formats

DD

Decimal Degrees

51.507400, -0.127800
DMS

Degrees Minutes Seconds

51°30'26.64"N 0°7'40.08"W
DDM

Degrees Decimal Minutes

51°30.4440'N 0°7.6680'W
UTM

Universal Transverse Mercator

30U 699316 5710164
MGRS

Military Grid Reference

30UXC9931610164
Geohash

Geohash Encoding

gcpvj0duq
Plus Code

Open Location Code

9C3XGV4C+XP

Map Location

Map data © OpenStreetMap contributors

Antipodal Point

The point on the exact opposite side of Earth from London. If you drilled straight through the planet's center, you would emerge here.

Antipodal coordinates

-51.507400, -0.127800

Hemisphere: S, W

DD

Decimal Degrees

-51.507400, -0.127800
DMS

Degrees Minutes Seconds

51°30'26.64"S 0°7'40.08"W
DDM

Degrees Decimal Minutes

51°30.4440'S 0°7.6680'W
UTM

Universal Transverse Mercator

30F 699316 4289836
MGRS

Military Grid Reference

30FXH9931689836
Geohash

Geohash Encoding

5yzfvp6gw
Plus Code

Open Location Code

3CWXFVVC+58

MGRS Decoded

MGRS encodes location as a nested hierarchy — zone, band, grid square, and offsets. Here is what each component of 30UXC9931610164 means.

Component Value Meaning
UTM Zone 30 One of 60 vertical slices of Earth (6° wide each). Zone 30 runs -6° to 0° longitude.
Latitude Band U One of 20 horizontal bands (8° tall each), lettered C–X (skipping I and O). Indicates the general latitude region.
100 km Square XC A 100 × 100 km grid square within the zone/band. Column letter X (west–east) and row letter C (south–north).
Easting 99316 Distance east within the 100 km square. 5-digit value = 10 m resolution. Multiply by 1 to get meters.
Northing 10164 Distance north within the 100 km square. Same resolution as easting (10 m).

Geohash Precision

A geohash encodes coordinates by subdividing the Earth into progressively smaller cells. Each extra character roughly halves the cell area. The table below shows London's geohash at every precision level alongside the bounding box each level represents.

Length Geohash Cell Size
1
g
≈ 5,000 × 5,000 km
2
gc
≈ 1,250 × 625 km
3
gcp
≈ 156 × 156 km
4
gcpv
≈ 39 × 20 km
5
gcpvj
≈ 4.9 × 4.9 km
6
gcpvj0
≈ 1.2 km × 610 m
7
gcpvj0d
≈ 153 × 153 m
8
gcpvj0du
≈ 38 × 19 m
9
gcpvj0duq
≈ 4.8 × 4.8 m

Precision 9 (highlighted) is the default and provides sub-5-metre accuracy for most applications.

About London

Capital of the United Kingdom and one of the world's most important financial and cultural cities.

Live Converter

The coordinates above are fixed to this landmark. Use this converter to enter any other coordinates — such as a nearby trailhead, parking area, or a location you want to compare — and get all 7 formats instantly.

DD

51.507400, -0.127800

DMS

51°30'26.64"N 0°7'40.08"W

DDM

51°30.4440'N 0°7.6680'W

UTM

30U 699316 5710164

MGRS

30UXC9931610164

GH

gcpvj0duq

OLC

9C3XGV4C+XP

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