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    EPSG reference

    EPSG:22392 — Carthage / Sud Tunisie

    Carthage / Sud Tunisie (EPSG:22392) — a Projected (metres) system on the clrk80ign datum, used in Tunisia. Parameters, proj4, WKT, accuracy ±0.1 m, plus a free converter…

    At a glance

    EPSG
    22392
    Name
    Carthage / Sud Tunisie
    Kind
    Projected (metres)
    Family
    Lambert Conformal Conic
    Ellipsoid
    clrk80ign
    Accuracy
    ±0.1 m (vs PROJ)
    Countries
    Tunisia
    Convert from this system now

    Area of use

    West7.49°
    South30.23°
    East11.59°
    North34.66°

    Projection parameters

    Projectionlcc
    Standard parallel 133.3
    Latitude of origin33.3
    Central meridian9.9
    Scale factor0.999625769
    False easting500000
    False northing300000
    Ellipsoidclrk80ign
    Unitsm
    Helmert shift to WGS84-263,6,431,0,0,0,0
    proj4
    +proj=lcc +lat_1=33.3 +lat_0=33.3 +lon_0=9.9 +k_0=0.999625769 +x_0=500000 +y_0=300000 +ellps=clrk80ign +units=m +no_defs +towgs84=-263,6,431,0,0,0,0
    WKT (ESRI)
    PROJCS["Carthage / Sud Tunisie",GEOGCS["GCS_Carthage / Sud Tunisie",DATUM["D_Clarke_1880_IGN",SPHEROID["Clarke_1880_IGN",6378249.2,293.4660212936269],TOWGS84[-263,6,431,0,0,0,0]],PRIMEM["Greenwich",0],UNIT["Degree",0.0174532925199433]],PROJECTION["Lambert_Conformal_Conic"],PARAMETER["False_Easting",500000],PARAMETER["False_Northing",300000],PARAMETER["Central_Meridian",9.9],PARAMETER["Standard_Parallel_1",33.3],PARAMETER["Scale_Factor",0.999625769],PARAMETER["Latitude_Of_Origin",33.3],UNIT["Meter",1],AUTHORITY["EPSG","22392"]]

    Sample conversion

    Centre of the area of use: WGS84 9.54000, 32.44500 → EPSG:22392 466105.526, 205087.065

    Values are within ±0.1 m at the test point.

    About the Lambert Conformal Conic family

    Carthage / Sud Tunisie uses the Lambert Conformal Conic projection — a cone-based, angle-preserving grid well suited to territories that stretch east–west, defined by one or two standard parallels. It is common for national mapping and for oil-and-gas grids across North Africa and Arabia.

    Scale is true along the standard parallel(s) and grows away from them; for precise distance work reduce ground distances to grid using the point scale factor. Confirm both standard parallels and the datum before trusting imported coordinates.

    Related systems

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    FAQ

    What is EPSG:22392?
    It is the coordinate system “Carthage / Sud Tunisie”, a Projected (metres) system in the Lambert Conformal Conic family, identified worldwide by the code EPSG:22392.
    What datum does it use, and how accurate is it?
    It is based on the clrk80ign ellipsoid and it carries Helmert parameters to WGS84. The residual at the test point is about ±0.1 m versus PROJ; for centimetre work use a geodetic adjustment service.
    Where is this system used?
    It is used in Tunisia. This page shows its area of use as a coordinate rectangle above.
    How do I convert EPSG:22392 to WGS84?
    Use the free coordinate converter above (preloaded with this system) to convert to WGS84, UTM, or any other system, within a ±0.1 m residual.

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