Home / Landmarks / Tom Madsen (Dutch Harbor) Airport

Tom Madsen (Dutch Harbor) Airport Coordinates

AK, US · Elevation 7m

Quick answer: Tom Madsen (Dutch Harbor) Airport is located at 53.898810, -166.544996 (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

53.898810, -166.544996
DMS

Degrees Minutes Seconds

53°53'55.72"N 166°32'41.99"W
DDM

Degrees Decimal Minutes

53°53.9286'N 166°32.6998'W
UTM

Universal Transverse Mercator

3U 398485 5973369
MGRS

Military Grid Reference

3UUV9848573369
Geohash

Geohash Encoding

b39dd5vxk
Plus Code

Open Location Code

925MVFX4+CJ

Map Location

Map data © OpenStreetMap contributors

Antipodal Point

The point on the exact opposite side of Earth from Tom Madsen (Dutch Harbor) Airport. If you drilled straight through the planet's center, you would emerge here.

Antipodal coordinates

-53.898810, -166.544996

Hemisphere: S, W

DD

Decimal Degrees

-53.898810, -166.544996
DMS

Degrees Minutes Seconds

53°53'55.72"S 166°32'41.99"W
DDM

Degrees Decimal Minutes

53°53.9286'S 166°32.6998'W
UTM

Universal Transverse Mercator

3F 398485 4026631
MGRS

Military Grid Reference

3FUA9848526631
Geohash

Geohash Encoding

0q3t6hj8s
Plus Code

Open Location Code

32RM4F24+C6

MGRS Decoded

MGRS encodes location as a nested hierarchy — zone, band, grid square, and offsets. Here is what each component of 3UUV9848573369 means.

Component Value Meaning
UTM Zone 3 One of 60 vertical slices of Earth (6° wide each). Zone 3 runs -168° to -162° 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 UV A 100 × 100 km grid square within the zone/band. Column letter U (west–east) and row letter V (south–north).
Easting 98485 Distance east within the 100 km square. 5-digit value = 10 m resolution. Multiply by 1 to get meters.
Northing 73369 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 Tom Madsen (Dutch Harbor) Airport's geohash at every precision level alongside the bounding box each level represents.

Length Geohash Cell Size
1
b
≈ 5,000 × 5,000 km
2
b3
≈ 1,250 × 625 km
3
b39
≈ 156 × 156 km
4
b39d
≈ 39 × 20 km
5
b39dd
≈ 4.9 × 4.9 km
6
b39dd5
≈ 1.2 km × 610 m
7
b39dd5v
≈ 153 × 153 m
8
b39dd5vx
≈ 38 × 19 m
9
b39dd5vxk
≈ 4.8 × 4.8 m

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

About Tom Madsen (Dutch Harbor) Airport

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

53.898810, -166.544996

DMS

53°53'55.72"N 166°32'41.99"W

DDM

53°53.9286'N 166°32.6998'W

UTM

3U 398485 5973369

MGRS

3UUV9848573369

GH

b39dd5vxk

OLC

925MVFX4+CJ

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