Cardiff: coordinates, UTM zone and magnetic declination
Survey data sheet for Cardiff (United Kingdom) 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 Cardiff in?
Cardiff is in UTM zone 30N, with central meridian 3° W. In WGS 84, the city center is at E 487,500 m and N 5,703,220 m.
What is the magnetic declination in Cardiff?
Today the magnetic declination in Cardiff is 0.20° E, changing by +10.8′ 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 Cardiff?
The geoid undulation (EGM2008) in Cardiff is N = 51.54 m. To convert a GNSS height (ellipsoidal, h) to an approximate orthometric height: H = h − N.
Cities near Cardiff
- Bristol 41 km
- Swansea 55 km
- Birmingham 142 km
- Reading 153 km
- Coventry 154 km
- Leicester 190 km
- Brent 199 km
- London 211 km
- All cities in United Kingdom
© GeoNames (CC BY 4.0) · Unicode CLDR · WMM2025 (NOAA/BGS) · EGM2008 (NGA) · IGS