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St Simons Island Airport Coordinates

GA, US · Elevation 6m

Quick answer: St Simons Island Airport is located at 31.151800, -81.391296 (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

31.151800, -81.391296
DMS

Degrees Minutes Seconds

31°9'6.48"N 81°23'28.67"W
DDM

Degrees Decimal Minutes

31°9.1080'N 81°23.4778'W
UTM

Universal Transverse Mercator

17R 462704 3446491
MGRS

Military Grid Reference

17RMQ6270446491
Geohash

Geohash Encoding

djw15zh8m
Plus Code

Open Location Code

863W5J25+MQ

Map Location

Map data © OpenStreetMap contributors

Antipodal Point

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

Antipodal coordinates

-31.151800, -81.391296

Hemisphere: S, W

DD

Decimal Degrees

-31.151800, -81.391296
DMS

Degrees Minutes Seconds

31°9'6.48"S 81°23'28.67"W
DDM

Degrees Decimal Minutes

31°9.1080'S 81°23.4778'W
UTM

Universal Transverse Mercator

17J 462704 6553509
MGRS

Military Grid Reference

17JMF6270453509
Geohash

Geohash Encoding

64qngbuxt
Plus Code

Open Location Code

46WWRJX5+79

MGRS Decoded

MGRS encodes location as a nested hierarchy — zone, band, grid square, and offsets. Here is what each component of 17RMQ6270446491 means.

Component Value Meaning
UTM Zone 17 One of 60 vertical slices of Earth (6° wide each). Zone 17 runs -84° to -78° longitude.
Latitude Band R One of 20 horizontal bands (8° tall each), lettered C–X (skipping I and O). Indicates the general latitude region.
100 km Square MQ A 100 × 100 km grid square within the zone/band. Column letter M (west–east) and row letter Q (south–north).
Easting 62704 Distance east within the 100 km square. 5-digit value = 10 m resolution. Multiply by 1 to get meters.
Northing 46491 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 St Simons Island Airport'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
dj
≈ 1,250 × 625 km
3
djw
≈ 156 × 156 km
4
djw1
≈ 39 × 20 km
5
djw15
≈ 4.9 × 4.9 km
6
djw15z
≈ 1.2 km × 610 m
7
djw15zh
≈ 153 × 153 m
8
djw15zh8
≈ 38 × 19 m
9
djw15zh8m
≈ 4.8 × 4.8 m

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

About St Simons Island Airport

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

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

31.151800, -81.391296

DMS

31°9'6.48"N 81°23'28.67"W

DDM

31°9.1080'N 81°23.4778'W

UTM

17R 462704 3446491

MGRS

17RMQ6270446491

GH

djw15zh8m

OLC

863W5J25+MQ

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