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Mauna Kea Coordinates

Hawaii, United States · Elevation 4,207m

Quick answer: Mauna Kea is located at 19.820800, -155.468100 (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

19.820800, -155.468100
DMS

Degrees Minutes Seconds

19°49'14.88"N 155°28'5.16"W
DDM

Degrees Decimal Minutes

19°49.2480'N 155°28.0860'W
UTM

Universal Transverse Mercator

5Q 241471 2193540
MGRS

Military Grid Reference

5QKB4147193540
Geohash

Geohash Encoding

8e92y0r8d
Plus Code

Open Location Code

73F6RGCJ+9C

Map Location

Map data © OpenStreetMap contributors

Antipodal Point

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

Antipodal coordinates

-19.820800, -155.468100

Hemisphere: S, W

DD

Decimal Degrees

-19.820800, -155.468100
DMS

Degrees Minutes Seconds

19°49'14.88"S 155°28'5.16"W
DDM

Degrees Decimal Minutes

19°49.2480'S 155°28.0860'W
UTM

Universal Transverse Mercator

5K 241471 7806460
MGRS

Military Grid Reference

5KKU4147106460
Geohash

Geohash Encoding

2s3rnpxx6
Plus Code

Open Location Code

53G65GHJ+QC

MGRS Decoded

MGRS encodes location as a nested hierarchy — zone, band, grid square, and offsets. Here is what each component of 5QKB4147193540 means.

Component Value Meaning
UTM Zone 5 One of 60 vertical slices of Earth (6° wide each). Zone 5 runs -156° to -150° longitude.
Latitude Band Q One of 20 horizontal bands (8° tall each), lettered C–X (skipping I and O). Indicates the general latitude region.
100 km Square KB A 100 × 100 km grid square within the zone/band. Column letter K (west–east) and row letter B (south–north).
Easting 41471 Distance east within the 100 km square. 5-digit value = 10 m resolution. Multiply by 1 to get meters.
Northing 93540 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 Mauna Kea's geohash at every precision level alongside the bounding box each level represents.

Length Geohash Cell Size
1
8
≈ 5,000 × 5,000 km
2
8e
≈ 1,250 × 625 km
3
8e9
≈ 156 × 156 km
4
8e92
≈ 39 × 20 km
5
8e92y
≈ 4.9 × 4.9 km
6
8e92y0
≈ 1.2 km × 610 m
7
8e92y0r
≈ 153 × 153 m
8
8e92y0r8
≈ 38 × 19 m
9
8e92y0r8d
≈ 4.8 × 4.8 m

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

About Mauna Kea

Mauna Kea is a dormant volcano and the highest point in Hawaii at 4,207.3 m (13,803 ft). It is home to one of the world's premier astronomical observatory complexes due to its high altitude and clear skies.

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

19.820800, -155.468100

DMS

19°49'14.88"N 155°28'5.16"W

DDM

19°49.2480'N 155°28.0860'W

UTM

5Q 241471 2193540

MGRS

5QKB4147193540

GH

8e92y0r8d

OLC

73F6RGCJ+9C

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