EPSG systems

EPSG:3149 Indian 1960 / UTM zone 49N

Projected system (Transverse Mercator) in use: Vietnam - east of 108°E onshore. The full definition below, and conversion in one click.

System record
CodeEPSG:3149
NameIndian 1960 / UTM zone 49N
TypeProjected system — Transverse Mercator
Area of use Vietnam - east of 108°E onshore
Vietnam - onshore east of 108°E.
Bounds W 108,00° · S 10,43° · E 109,53° · N 21,56°
Countries Vietnam
DatumIndian 1960
Ellipsoid Everest 1830 (1937 Adjustment) a = 6377276.345 m · 1/f = 300.8017
Base geographic system EPSG:4131 — Indian 1960
Unit metre (E east, N north)
Transformation to WGS 84 Indian 1960 to WGS 84 (2) (EPSG:1542) — accuracy 44 m
ScopeEngineering survey, topographic mapping.

Projection parameters

ParameterValueUnit
Latitude of natural origin0degree
Longitude of natural origin111degree
Scale factor at natural origin0.9996unity
False easting500000metre
False northing0metre

proj4 definition

+proj=utm +zone=49 +ellps=evrst30 +units=m +towgs84=198,881,317 +no_defs

Paste it into QGIS, proj4js, PostGIS (spatial_ref_sys) or GDAL. +towgs84 carries the EPSG transformation to WGS 84; the official code stays EPSG:3149.

WKT (ESRI format, the .prj content)

PROJCS["Indian_1960_UTM_Zone_49N",GEOGCS["GCS_Indian_1960",DATUM["D_Indian_1960",SPHEROID["Everest_Adjustment_1937",6377276.345,300.8017]],PRIMEM["Greenwich",0.0],UNIT["Degree",0.0174532925199433]],PROJECTION["Transverse_Mercator"],PARAMETER["False_Easting",500000.0],PARAMETER["False_Northing",0.0],PARAMETER["Central_Meridian",111.0],PARAMETER["Scale_Factor",0.9996],PARAMETER["Latitude_Of_Origin",0.0],UNIT["Meter",1.0]]

All systems — Vietnam

Source: EPSG registry v11.022 (IOGP), through the PROJ database. Always check a code on epsg.org before contractual work.