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EPSG Library · Qatar

EPSG:28600 — Qatar 1974 / Qatar National Grid

Source: EPSG Dataset via PROJ 9.5.1 · Updated

Summary

EPSG:28600 (Qatar 1974 / Qatar National Grid) is a projected coordinate reference system on the Qatar 1974 datum using the Transverse Mercator method, with coordinates in metres. Area of use: Qatar - onshore.

  • Type: projected
  • Datum: Qatar 1974
  • Units: metre
  • Axes: E, N

Definition

EPSG:28600 as published in the EPSG Dataset (PROJ 9.5.1).
PropertyValue
EPSG codeEPSG:28600
NameQatar 1974 / Qatar National Grid
TypeProjected CRS
DatumQatar 1974
EllipsoidInternational 1924 (a = 6,378,388.000 m, 1/f = 297)
Prime meridianGreenwich
Projection methodTransverse Mercator
AxesEasting (E, east, metre); Northing (N, north, metre)
ScopeEngineering survey, topographic mapping.
Bounding box50.69° to 51.68° longitude, 24.55° to 26.2° latitude

Area of use

Qatar - onshore.

Projection parameters

Transverse Mercator parameters.
ParameterValueUnit
Latitude of natural origin24.45degree
Longitude of natural origin51.21666667degree
Scale factor at natural origin0.99999unity
False easting200,000metre
False northing300,000metre

Example coordinates

A WGS 84 point at longitude 51.185°, latitude 25.375° (inside the area of use) has these coordinates in EPSG:28600:

Computed with PROJ using the EPSG default operation: unavailable until proj_trans is called.
AxisValueUnit
E196,890.960m
N402,387.416m

At this point the projection scale factor is 0.99999013 and the grid convergence is -0.013570°.

Open this conversion in the coordinate converter

Transformations to WGS 84

Candidate operations from the EPSG Dataset, best first as ranked by PROJ.
OperationAccuracyArea of use
axis order change (2D) + Qatar 1974 to WGS 84 (2) + axis order change (2D)1 mQatar - offshore.
axis order change (2D) + Qatar 1974 to WGS 84 (3) + axis order change (2D)1 mQatar - onshore.
axis order change (2D) + Qatar 1974 to WGS 84 (1) + axis order change (2D)35 mQatar - onshore.

Transformations change the datum, so each has an accuracy and an area of use. Choose the most accurate one that covers your data and record its name. See datum transformations.

Definitions and downloads

PROJ string

+proj=tmerc +lat_0=24.45 +lon_0=51.2166666666667 +k=0.99999 +x_0=200000 +y_0=300000 +ellps=intl +units=m +no_defs +type=crs

A PROJ string cannot carry every EPSG detail (axis order, datum ensemble, transformations). Prefer WKT2 or the EPSG code itself.

Proj4js definition used by the converter

+proj=tmerc +lat_0=24.45 +lon_0=51.2166666666667 +k=0.99999 +x_0=200000 +y_0=300000 +ellps=intl +units=m +towgs84=-128.033,-283.697,21.052 +no_defs

Datum shift from Qatar 1974 to WGS 84 (3) (EPSG accuracy 1 m), the best single Helmert operation for this area of use. Where PROJ prefers a grid-based or multi-step operation (see the table above), results can differ by up to that operation's accuracy.

WKT2:2019
PROJCRS["Qatar 1974 / Qatar National Grid", BASEGEOGCRS["Qatar 1974", DATUM["Qatar 1974", ELLIPSOID["International 1924",6378388,297, LENGTHUNIT["metre",1]]], PRIMEM["Greenwich",0, ANGLEUNIT["degree",0.0174532925199433]], ID["EPSG",4285]], CONVERSION["Qatar National Grid", METHOD["Transverse Mercator", ID["EPSG",9807]], PARAMETER["Latitude of natural origin",24.45, ANGLEUNIT["degree",0.0174532925199433], ID["EPSG",8801]], PARAMETER["Longitude of natural origin",51.2166666666667, ANGLEUNIT["degree",0.0174532925199433], ID["EPSG",8802]], PARAMETER["Scale factor at natural origin",0.99999, SCALEUNIT["unity",1], ID["EPSG",8805]], PARAMETER["False easting",200000, LENGTHUNIT["metre",1], ID["EPSG",8806]], PARAMETER["False northing",300000, LENGTHUNIT["metre",1], ID["EPSG",8807]]], CS[Cartesian,2], AXIS["(E)",east, ORDER[1], LENGTHUNIT["metre",1]], AXIS["(N)",north, ORDER[2], LENGTHUNIT["metre",1]], USAGE[ SCOPE["Engineering survey, topographic mapping."], AREA["Qatar - onshore."], BBOX[24.55,50.69,26.2,51.68]], ID["EPSG",28600]]

Downloads

FAQ

What is EPSG:28600?

EPSG:28600 (Qatar 1974 / Qatar National Grid) is a projected coordinate reference system on the Qatar 1974 datum using the Transverse Mercator method, with coordinates in metres. Area of use: Qatar - onshore.

Where can EPSG:28600 be used?

Its area of use is: Qatar - onshore.

Is EPSG:28600 in metres or degrees?

EPSG:28600 is projected, so coordinates are easting and northing in metres, not degrees.

How do I convert EPSG:28600 to latitude and longitude?

Transform from EPSG:28600 to EPSG:4326 (WGS 84). In GeoCAD Bridge open the coordinate converter with EPSG:28600 preselected, enter easting and northing, and choose WGS 84 as the target.

How accurate is the transformation from EPSG:28600 to WGS 84?

The most accurate EPSG transformation listed here is “axis order change (2D) + Qatar 1974 to WGS 84 (2) + axis order change (2D)”, with a stated accuracy of 1 m for Qatar - offshore.. Always check the area of use before applying it.

Coordinate systems

Articles

Tools

References

  1. IOGP. EPSG Geodetic Parameter Dataset, epsg.org/crs_28600.
  2. PROJ 9.5.1 / pyproj 3.7.2, used to compute every value on this page.

Cite this page

GeoCAD Bridge. “EPSG:28600 — Qatar 1974 / Qatar National Grid.” GeoCAD Bridge EPSG Library, updated 2026-10-05. https://www.geocadbridge.com/epsg/28600/