Zamboanga City: coordinates, UTM zone and magnetic declination
Survey data sheet for Zamboanga City (Philippines) 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 Zamboanga City in?
Zamboanga City is in UTM zone 51N, with central meridian 123° E. In WGS 84, the city center is at E 397,686 m and N 763,930 m.
What is the magnetic declination in Zamboanga City?
Today the magnetic declination in Zamboanga City is 1.38° W, changing by −2.6′ 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 Zamboanga City?
The geoid undulation (EGM2008) in Zamboanga City is N = 67.69 m. To convert a GNSS height (ellipsoidal, h) to an approximate orthometric height: H = h − N.
Cities near Zamboanga City
- Cotabato City 242 km
- Budta 263 km
- Malingao 266 km
- Iligan 281 km
- Iligan City 297 km
- Cagayan de Oro 333 km
- General Santos 354 km
- Davao City 391 km
- All cities in Philippines
© GeoNames (CC BY 4.0) · Unicode CLDR · WMM2025 (NOAA/BGS) · EGM2008 (NGA) · IGS