Houston: coordinates, UTM zone and magnetic declination
Survey data sheet for Houston (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 Houston in?
Houston is in UTM zone 15N, with central meridian 93° W. In WGS 84, the city center is at E 271,496 m and N 3,294,896 m.
What is the magnetic declination in Houston?
Today the magnetic declination in Houston is 1.70° E, changing by −4.8′ 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 Houston?
The geoid undulation (EGM2008) in Houston is N = −28.41 m. To convert a GNSS height (ellipsoidal, h) to an approximate orthometric height: H = h − N.
Cities near Houston
- Austin 236 km
- Corpus Christi 295 km
- San Antonio 305 km
- Dallas 363 km
- Arlington 370 km
- Fort Worth 378 km
- Plano 384 km
- New Orleans 510 km
- All cities in United States
© GeoNames (CC BY 4.0) · Unicode CLDR · WMM2025 (NOAA/BGS) · EGM2008 (NGA) · IGS