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Ronald Reagan Washington National Airport Coordinates

DC, US · Elevation 5m

Quick answer: Ronald Reagan Washington National Airport is located at 38.852100, -77.037697 (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

38.852100, -77.037697
DMS

Degrees Minutes Seconds

38°51'7.56"N 77°2'15.71"W
DDM

Degrees Decimal Minutes

38°51.1260'N 77°2.2618'W
UTM

Universal Transverse Mercator

18S 323177 4302337
MGRS

Military Grid Reference

18SUJ2317702337
Geohash

Geohash Encoding

dqcjnbycg
Plus Code

Open Location Code

87C4VX26+X4

Map Location

Map data © OpenStreetMap contributors

Antipodal Point

The point on the exact opposite side of Earth from Ronald Reagan Washington National Airport. If you drilled straight through the planet's center, you would emerge here.

Antipodal coordinates

-38.852100, -77.037697

Hemisphere: S, W

DD

Decimal Degrees

-38.852100, -77.037697
DMS

Degrees Minutes Seconds

38°51'7.56"S 77°2'15.71"W
DDM

Degrees Decimal Minutes

38°51.1260'S 77°2.2618'W
UTM

Universal Transverse Mercator

18H 323177 5697663
MGRS

Military Grid Reference

18HUB2317797663
Geohash

Geohash Encoding

6314yzny5
Plus Code

Open Location Code

47H44XX6+5P

MGRS Decoded

MGRS encodes location as a nested hierarchy — zone, band, grid square, and offsets. Here is what each component of 18SUJ2317702337 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 UJ A 100 × 100 km grid square within the zone/band. Column letter U (west–east) and row letter J (south–north).
Easting 23177 Distance east within the 100 km square. 5-digit value = 10 m resolution. Multiply by 1 to get meters.
Northing 02337 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 Ronald Reagan Washington National 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
dq
≈ 1,250 × 625 km
3
dqc
≈ 156 × 156 km
4
dqcj
≈ 39 × 20 km
5
dqcjn
≈ 4.9 × 4.9 km
6
dqcjnb
≈ 1.2 km × 610 m
7
dqcjnby
≈ 153 × 153 m
8
dqcjnbyc
≈ 38 × 19 m
9
dqcjnbycg
≈ 4.8 × 4.8 m

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

About Ronald Reagan Washington National Airport

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

38.852100, -77.037697

DMS

38°51'7.56"N 77°2'15.71"W

DDM

38°51.1260'N 77°2.2618'W

UTM

18S 323177 4302337

MGRS

18SUJ2317702337

GH

dqcjnbycg

OLC

87C4VX26+X4

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