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RAF Northolt Coordinates

ENG, GB · Elevation 38m

Quick answer: RAF Northolt is located at 51.553001, -0.418167 (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

51.553001, -0.418167
DMS

Degrees Minutes Seconds

51°33'10.80"N 0°25'5.40"W
DDM

Degrees Decimal Minutes

51°33.1801'N 0°25.0900'W
UTM

Universal Transverse Mercator

30U 678990 5714483
MGRS

Military Grid Reference

30UXC7899014483
Geohash

Geohash Encoding

gcptq2ztb
Plus Code

Open Location Code

9C3XHH3J+85

Map Location

Map data © OpenStreetMap contributors

Antipodal Point

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

Antipodal coordinates

-51.553001, -0.418167

Hemisphere: S, W

DD

Decimal Degrees

-51.553001, -0.418167
DMS

Degrees Minutes Seconds

51°33'10.80"S 0°25'5.40"W
DDM

Degrees Decimal Minutes

51°33.1801'S 0°25.0900'W
UTM

Universal Transverse Mercator

30F 678990 4285517
MGRS

Military Grid Reference

30FXH7899085517
Geohash

Geohash Encoding

5yzdwrpd0
Plus Code

Open Location Code

3CWXCHWJ+PX

MGRS Decoded

MGRS encodes location as a nested hierarchy — zone, band, grid square, and offsets. Here is what each component of 30UXC7899014483 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 78990 Distance east within the 100 km square. 5-digit value = 10 m resolution. Multiply by 1 to get meters.
Northing 14483 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 RAF Northolt'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
gcpt
≈ 39 × 20 km
5
gcptq
≈ 4.9 × 4.9 km
6
gcptq2
≈ 1.2 km × 610 m
7
gcptq2z
≈ 153 × 153 m
8
gcptq2zt
≈ 38 × 19 m
9
gcptq2ztb
≈ 4.8 × 4.8 m

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

About RAF Northolt

https://en.wikipedia.org/wiki/RAF_Northolt

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

51.553001, -0.418167

DMS

51°33'10.80"N 0°25'5.40"W

DDM

51°33.1801'N 0°25.0900'W

UTM

30U 678990 5714483

MGRS

30UXC7899014483

GH

gcptq2ztb

OLC

9C3XHH3J+85

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