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Joint Base Andrews Coordinates

MD, US · Elevation 85m

Quick answer: Joint Base Andrews is located at 38.810799, -76.866997 (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

38.810799, -76.866997
DMS

Degrees Minutes Seconds

38°48'38.88"N 76°52'1.19"W
DDM

Degrees Decimal Minutes

38°48.6479'N 76°52.0198'W
UTM

Universal Transverse Mercator

18S 337898 4297437
MGRS

Military Grid Reference

18SUH3789897437
Geohash

Geohash Encoding

dqckfc71m
Plus Code

Open Location Code

87C5R46M+6H

Map Location

Map data © OpenStreetMap contributors

Antipodal Point

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

Antipodal coordinates

-38.810799, -76.866997

Hemisphere: S, W

DD

Decimal Degrees

-38.810799, -76.866997
DMS

Degrees Minutes Seconds

38°48'38.88"S 76°52'1.19"W
DDM

Degrees Decimal Minutes

38°48.6479'S 76°52.0198'W
UTM

Universal Transverse Mercator

18H 337898 5702563
MGRS

Military Grid Reference

18HUC3789802563
Geohash

Geohash Encoding

63174yent
Plus Code

Open Location Code

47H554QM+JH

MGRS Decoded

MGRS encodes location as a nested hierarchy — zone, band, grid square, and offsets. Here is what each component of 18SUH3789897437 means.

Component Value Meaning
UTM Zone 18 One of 60 vertical slices of Earth (6° wide each). Zone 18 runs -78° to -72° longitude.
Latitude Band S One of 20 horizontal bands (8° tall each), lettered C–X (skipping I and O). Indicates the general latitude region.
100 km Square UH A 100 × 100 km grid square within the zone/band. Column letter U (west–east) and row letter H (south–north).
Easting 37898 Distance east within the 100 km square. 5-digit value = 10 m resolution. Multiply by 1 to get meters.
Northing 97437 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 Joint Base Andrews's geohash at every precision level alongside the bounding box each level represents.

Length Geohash Cell Size
1
d
≈ 5,000 × 5,000 km
2
dq
≈ 1,250 × 625 km
3
dqc
≈ 156 × 156 km
4
dqck
≈ 39 × 20 km
5
dqckf
≈ 4.9 × 4.9 km
6
dqckfc
≈ 1.2 km × 610 m
7
dqckfc7
≈ 153 × 153 m
8
dqckfc71
≈ 38 × 19 m
9
dqckfc71m
≈ 4.8 × 4.8 m

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

About Joint Base Andrews

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

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

38.810799, -76.866997

DMS

38°48'38.88"N 76°52'1.19"W

DDM

38°48.6479'N 76°52.0198'W

UTM

18S 337898 4297437

MGRS

18SUH3789897437

GH

dqckfc71m

OLC

87C5R46M+6H