Boston: coordinates, UTM zone and magnetic declination
Survey data sheet for Boston (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 Boston in?
Boston is in UTM zone 19N, with central meridian 69° W. In WGS 84, the city center is at E 330,372 m and N 4,691,628 m.
What is the magnetic declination in Boston?
Today the magnetic declination in Boston is 13.93° W, changing by +4.3′ 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 Boston?
The geoid undulation (EGM2008) in Boston is N = −28.58 m. To convert a GNSS height (ellipsoidal, h) to an approximate orthometric height: H = h − N.
Cities near Boston
- South Boston 3 km
- The Bronx 287 km
- Borough of Queens 297 km
- Manhattan 299 km
- New York 306 km
- Brooklyn 307 km
- Staten Island 325 km
- Philadelphia 435 km
- All cities in United States
© GeoNames (CC BY 4.0) · Unicode CLDR · WMM2025 (NOAA/BGS) · EGM2008 (NGA) · IGS