Chennai: coordinates, UTM zone and magnetic declination
Survey data sheet for Chennai (India) 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 Chennai in?
Chennai is in UTM zone 44N, with central meridian 81° E. In WGS 84, the city center is at E 421,782 m and N 1,446,961 m.
What is the magnetic declination in Chennai?
Today the magnetic declination in Chennai is 1.07° W, changing by +1.8′ 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 Chennai?
The geoid undulation (EGM2008) in Chennai is N = −92.03 m. To convert a GNSS height (ellipsoidal, h) to an approximate orthometric height: H = h − N.
Cities near Chennai
- Ambattur 13 km
- Avadi 19 km
- Tirupati 111 km
- Vellore 126 km
- Puducherry 137 km
- Gundupālaiyam 138 km
- Nellore 155 km
- Kallakurichi 208 km
- All cities in India
© GeoNames (CC BY 4.0) · Unicode CLDR · WMM2025 (NOAA/BGS) · EGM2008 (NGA) · IGS