San Francisco: coordinates, UTM zone and magnetic declination
Survey data sheet for San Francisco (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 San Francisco in?
San Francisco is in UTM zone 10N, with central meridian 123° W. In WGS 84, the city center is at E 551,129 m and N 4,181,002 m.
What is the magnetic declination in San Francisco?
Today the magnetic declination in San Francisco is 12.83° E, changing by −5.4′ 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 San Francisco?
The geoid undulation (EGM2008) in San Francisco is N = −32.17 m. To convert a GNSS height (ellipsoidal, h) to an approximate orthometric height: H = h − N.
Cities near San Francisco
- Oakland 13 km
- San Jose 67 km
- Stockton 101 km
- Sacramento 121 km
- Fresno 261 km
- Bakersfield 404 km
- Los Angeles 559 km
- Long Beach 587 km
- All cities in United States
© GeoNames (CC BY 4.0) · Unicode CLDR · WMM2025 (NOAA/BGS) · EGM2008 (NGA) · IGS