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Oklahoma City: coordinates, UTM zone and magnetic declination

Survey data sheet for Oklahoma City (United States) for field work: coordinates, UTM zone, scale factor, grid convergence, today's magnetic declination and geoid undulation, computed for the city center.

Latitude35°28′03.2″ N
Longitude97°30′59.1″ W
Decimal degrees35.46756, -97.51643
UTM zone14N · MC 99° W
UTM (WGS 84)E 634,609 · N 3,925,907
Scale factor (k)0.999823
Grid convergence+0.8610°
Magnetic declination (today)2.99° E · −4.5′/year
Geoid undulation (EGM2008)N = −27.65 m
Approximate elevation366 m
Time zoneAmerica/Chicago (UTC−5)
Population681,054

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)

StationLocationDistance
SGPO SGPO00USABillings, United States126 km
KSU1 KSU100USAManhattan, United States412 km
AUT0 AUT000USAAustin, United States564 km

Tools to use here

FAQ

What UTM zone is Oklahoma City in?

Oklahoma City is in UTM zone 14N, with central meridian 99° W. In WGS 84, the city center is at E 634,609 m and N 3,925,907 m.

What is the magnetic declination in Oklahoma City?

Today the magnetic declination in Oklahoma City is 2.99° E, changing by −4.5′ 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 Oklahoma City?

The geoid undulation (EGM2008) in Oklahoma City is N = −27.65 m. To convert a GNSS height (ellipsoidal, h) to an approximate orthometric height: H = h − N.

Cities near Oklahoma City

© GeoNames (CC BY 4.0) · Unicode CLDR · WMM2025 (NOAA/BGS) · EGM2008 (NGA) · IGS

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