Washington D.C.: coordinates, UTM zone and magnetic declination
Survey data sheet for Washington D.C. (United States) for field work: coordinates, UTM zone, scale factor, grid convergence, today's magnetic declination and geoid undulation, computed for the city center.
Values for the city center (GeoNames coordinate). Declination from the World Magnetic Model 2025 for today's date; geoid from EGM2008. For an exact point, use the tools below.
Nearest GNSS reference stations (IGS)
Tools to use here
FAQ
What UTM zone is Washington D.C. in?
Washington D.C. is in UTM zone 18N, with central meridian 75° W. In WGS 84, the city center is at E 323,399 m and N 4,307,108 m.
What is the magnetic declination in Washington D.C.?
Today the magnetic declination in Washington D.C. is 10.70° W, changing by +0.5′ per year (WMM2025 model). To get the true azimuth, add the declination to the magnetic azimuth (East positive, West negative).
What is the geoid undulation in Washington D.C.?
The geoid undulation (EGM2008) in Washington D.C. is N = −32.96 m. To convert a GNSS height (ellipsoidal, h) to an approximate orthometric height: H = h − N.
Cities near Washington D.C.
- Baltimore 57 km
- Philadelphia 199 km
- Virginia Beach 245 km
- Pittsburgh 306 km
- Staten Island 309 km
- Brooklyn 328 km
- New York 328 km
- Manhattan 336 km
- All cities in United States
© GeoNames (CC BY 4.0) · Unicode CLDR · WMM2025 (NOAA/BGS) · EGM2008 (NGA) · IGS