Philadelphia: coordinates, UTM zone and magnetic declination
Survey data sheet for Philadelphia (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 Philadelphia in?
Philadelphia is in UTM zone 18N, with central meridian 75° W. In WGS 84, the city center is at E 486,024 m and N 4,422,485 m.
What is the magnetic declination in Philadelphia?
Today the magnetic declination in Philadelphia is 11.80° W, changing by +1.6′ 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 Philadelphia?
The geoid undulation (EGM2008) in Philadelphia is N = −33.84 m. To convert a GNSS height (ellipsoidal, h) to an approximate orthometric height: H = h − N.
Cities near Philadelphia
- Staten Island 110 km
- Brooklyn 129 km
- New York 130 km
- Manhattan 137 km
- Borough of Queens 139 km
- Baltimore 144 km
- The Bronx 148 km
- Washington D.C. 199 km
- All cities in United States
© GeoNames (CC BY 4.0) · Unicode CLDR · WMM2025 (NOAA/BGS) · EGM2008 (NGA) · IGS