Johannesburg: coordinates, UTM zone and magnetic declination
Survey data sheet for Johannesburg (South Africa) 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 Johannesburg in?
Johannesburg is in UTM zone 35S, with central meridian 27° E. In WGS 84, the city center is at E 604,268 m and N 7,101,496 m.
What is the magnetic declination in Johannesburg?
Today the magnetic declination in Johannesburg is 20.83° W, changing by −15.9′ 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 Johannesburg?
The geoid undulation (EGM2008) in Johannesburg is N = 26.53 m. To convert a GNSS height (ellipsoidal, h) to an approximate orthometric height: H = h − N.
Cities near Johannesburg
- Randburg 13 km
- Roodepoort 18 km
- Soweto 20 km
- Boksburg 22 km
- Benoni 28 km
- Thembisa 29 km
- Krugersdorp 30 km
- Diepsloot 30 km
- All cities in South Africa
© GeoNames (CC BY 4.0) · Unicode CLDR · WMM2025 (NOAA/BGS) · EGM2008 (NGA) · IGS