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    EPSG reference

    EPSG:26193 — Merchich / Sud Maroc (deg)

    Merchich / Sud Maroc (deg) (EPSG:26193) — a Projected (metres) system on the clrk80ign datum, used in Morocco. Parameters, proj4, WKT, accuracy ±0.1 m, plus a free conve…

    At a glance

    EPSG
    26193
    Name
    Merchich / Sud Maroc (deg)
    Kind
    Projected (metres)
    Family
    Lambert Conformal Conic
    Ellipsoid
    clrk80ign
    Accuracy
    ±0.1 m (vs PROJ)
    Countries
    Morocco
    Convert from this system now

    Area of use

    West-17.00°
    South21.06°
    East-8.67°
    North27.90°

    Projection parameters

    Projectionlcc
    Standard parallel 126.1
    Latitude of origin26.1
    Central meridian-5.4
    Scale factor0.9996
    False easting1200000
    False northing400000
    Ellipsoidclrk80ign
    Unitsm
    proj4
    +proj=lcc +lat_1=26.1 +lat_0=26.1 +lon_0=-5.4 +k_0=0.9996 +x_0=1200000 +y_0=400000 +ellps=clrk80ign +units=m +no_defs
    WKT (ESRI)
    PROJCS["Merchich / Sud Maroc (deg)",GEOGCS["GCS_Merchich / Sud Maroc (deg)",DATUM["D_Clarke_1880_IGN",SPHEROID["Clarke_1880_IGN",6378249.2,293.4660212936269]],PRIMEM["Greenwich",0],UNIT["Degree",0.0174532925199433]],PROJECTION["Lambert_Conformal_Conic"],PARAMETER["False_Easting",1200000],PARAMETER["False_Northing",400000],PARAMETER["Central_Meridian",-5.4],PARAMETER["Standard_Parallel_1",26.1],PARAMETER["Scale_Factor",0.9996],PARAMETER["Latitude_Of_Origin",26.1],UNIT["Meter",1],AUTHORITY["EPSG","26193"]]

    Sample conversion

    Centre of the area of use: WGS84 -12.83500, 24.48000 → EPSG:26193 446700.316, 242108.433

    Values are within ±0.1 m at the test point.

    About the Lambert Conformal Conic family

    Merchich / Sud Maroc (deg) 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.

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    FAQ

    What is EPSG:26193?
    It is the coordinate system “Merchich / Sud Maroc (deg)”, a Projected (metres) system in the Lambert Conformal Conic family, identified worldwide by the code EPSG:26193.
    What datum does it use, and how accurate is it?
    It is based on the clrk80ign ellipsoid with no default transform to WGS84 (ballpark). 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 Morocco. This page shows its area of use as a coordinate rectangle above.
    How do I convert EPSG:26193 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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