// Surveyor Tools

Chittagong: coordinates, UTM zone and magnetic declination

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

Latitude22°20′18.2″ N
Longitude91°49′54.0″ E
Decimal degrees22.33840, 91.83168
UTM zone46N · MC 93° E
UTM (WGS 84)E 379,687 · N 2,470,750
Scale factor (k)0.999779
Grid convergence−0.4441°
Magnetic declination (today)0.51° W · +1.5′/year
Geoid undulation (EGM2008)N = −53.69 m
Approximate elevation15 m
Time zoneAsia/Dhaka (UTC+6)
Population3,920,222

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
SHLG SHLG00INDShillong, India371 km
LHAZ LHAZ00CHNLhasa, China817 km
CMUM CMUM00THAChiang Mai, Thailand839 km

Tools to use here

FAQ

What UTM zone is Chittagong in?

Chittagong is in UTM zone 46N, with central meridian 93° E. In WGS 84, the city center is at E 379,687 m and N 2,470,750 m.

What is the magnetic declination in Chittagong?

Today the magnetic declination in Chittagong is 0.51° W, changing by +1.5′ 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 Chittagong?

The geoid undulation (EGM2008) in Chittagong is N = −53.69 m. To convert a GNSS height (ellipsoidal, h) to an approximate orthometric height: H = h − N.

Cities near Chittagong

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

Get the latest news

New tools, channel videos and surveying content. No spam.