Skip to main content
    GeoGiza
    Sign in
    EPSG reference

    EPSG:28600 — Qatar 1974 / Qatar National Grid

    Qatar 1974 / Qatar National Grid (EPSG:28600) — a Projected (metres) system on the intl datum, used in Qatar. Parameters, proj4, WKT, accuracy ±1 m, plus a free converte…

    At a glance

    EPSG
    28600
    Name
    Qatar 1974 / Qatar National Grid
    Kind
    Projected (metres)
    Family
    Transverse Mercator (belt)
    Ellipsoid
    intl
    Accuracy
    ±1 m (vs PROJ)
    Countries
    Qatar
    Convert from this system now

    Area of use

    West50.69°
    South24.55°
    East51.68°
    North26.20°

    Projection parameters

    Projectiontmerc
    Latitude of origin24.45
    Central meridian51.2166666666667
    Scale factor0.99999
    False easting200000
    False northing300000
    Ellipsoidintl
    Unitsm
    Helmert shift to WGS84-128.16,-282.42,21.93,0,0,0,0
    proj4
    +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 +towgs84=-128.16,-282.42,21.93,0,0,0,0
    WKT (ESRI)
    PROJCS["Qatar 1974 / Qatar National Grid",GEOGCS["GCS_Qatar 1974 / Qatar National Grid",DATUM["D_International_1924",SPHEROID["International_1924",6378388,297],TOWGS84[-128.16,-282.42,21.93,0,0,0,0]],PRIMEM["Greenwich",0],UNIT["Degree",0.0174532925199433]],PROJECTION["Transverse_Mercator"],PARAMETER["False_Easting",200000],PARAMETER["False_Northing",300000],PARAMETER["Central_Meridian",51.2166666666667],PARAMETER["Scale_Factor",0.99999],PARAMETER["Latitude_Of_Origin",24.45],UNIT["Meter",1],AUTHORITY["EPSG","28600"]]

    Sample conversion

    Qatar capital: WGS84 51.53100, 25.28540 → EPSG:28600 231734.929, 392498.179

    Values are within ±1 m at the test point.

    About the Transverse Mercator (belt) family

    Qatar 1974 / Qatar National Grid is a Transverse Mercator belt — a national or cadastral grid in metres, conformal (angles are preserved), with its own central meridian and scale factor. Egypt's Red/Purple/Blue belts, the Levant grids, and many Gulf cadastral systems are of this kind.

    Two things decide whether your coordinates land correctly: the exact belt (central meridian) and the datum. Mixing a coordinate from one belt into another, or ignoring the datum shift to WGS 84, is the usual cause of a systematic offset in imported survey data.

    Related systems

    Useful links: Converter · Batch converter · File converter · Country page

    Request technical support

    Need help with your survey project?

    Leave your email and our technical office will reach out for certified conversion and geodetic-adjustment support. The tool stays free, no sign-up.

    FAQ

    What is EPSG:28600?
    It is the coordinate system “Qatar 1974 / Qatar National Grid”, a Projected (metres) system in the Transverse Mercator (belt) family, identified worldwide by the code EPSG:28600.
    What datum does it use, and how accurate is it?
    It is based on the intl ellipsoid and it carries Helmert parameters to WGS84. The residual at the test point is about ±1 m versus PROJ; for centimetre work use a geodetic adjustment service.
    Where is this system used?
    It is used in Qatar. This page shows its area of use as a coordinate rectangle above.
    How do I convert EPSG:28600 to WGS84?
    Use the free coordinate converter above (preloaded with this system) to convert to WGS84, UTM, or any other system, within a ±1 m residual.

    You may also need: Arab-world coordinate converter · Surveying file format converter · Batch coordinate file converter