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Louisville: coordinates, UTM zone and magnetic declination

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

Latitude38°15′15.3″ N
Longitude85°45′33.9″ W
Decimal degrees38.25424, -85.75941
UTM zone16N · MC 87° W
UTM (WGS 84)E 608,545 · N 4,234,752
Scale factor (k)0.999745
Grid convergence+0.7682°
Magnetic declination (today)5.15° W · −2.4′/year
Geoid undulation (EGM2008)N = −34.08 m
Approximate elevation142 m
Time zoneAmerica/Kentucky/Louisville (UTC−4)
Population624,444

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
ACSO ACSO00USADelaware, United States325 km
P779 P77900USARosman, United States426 km
NLIB NLIB00USANorth Liberty, United States631 km

Tools to use here

FAQ

What UTM zone is Louisville in?

Louisville is in UTM zone 16N, with central meridian 87° W. In WGS 84, the city center is at E 608,545 m and N 4,234,752 m.

What is the magnetic declination in Louisville?

Today the magnetic declination in Louisville is 5.15° W, changing by −2.4′ 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 Louisville?

The geoid undulation (EGM2008) in Louisville is N = −34.08 m. To convert a GNSS height (ellipsoidal, h) to an approximate orthometric height: H = h − N.

Cities near Louisville

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

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