Skip to main content
    GeoGiza
    Sign in
    EPSG reference

    EPSG:26195 — Merchich / Sahara Sud

    Merchich / Sahara Sud (EPSG:26195) — a Projected (metres) system on the clrk80ign datum, used in Morocco. Parameters, proj4, WKT, accuracy ±0.1 m, plus a free converter…

    At a glance

    EPSG
    26195
    Name
    Merchich / Sahara Sud
    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-17.16°
    South20.71°
    East-12.00°
    North24.31°

    Projection parameters

    Projectionlcc
    Standard parallel 122.5
    Latitude of origin22.5
    Central meridian-5.4
    Scale factor0.999616437
    False easting1500000
    False northing400000
    Ellipsoidclrk80ign
    Unitsm
    proj4
    +proj=lcc +lat_1=22.5 +lat_0=22.5 +lon_0=-5.4 +k_0=0.999616437 +x_0=1500000 +y_0=400000 +ellps=clrk80ign +units=m +no_defs
    WKT (ESRI)
    PROJCS["Merchich / Sahara Sud",GEOGCS["GCS_Merchich / Sahara Sud",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",1500000],PARAMETER["False_Northing",400000],PARAMETER["Central_Meridian",-5.4],PARAMETER["Standard_Parallel_1",22.5],PARAMETER["Scale_Factor",0.999616437],PARAMETER["Latitude_Of_Origin",22.5],UNIT["Meter",1],AUTHORITY["EPSG","26195"]]

    Sample conversion

    Centre of the area of use: WGS84 -14.58000, 22.51000 → EPSG:26195 556409.925, 430043.582

    Values are within ±0.1 m at the test point.

    About the Lambert Conformal Conic family

    Merchich / Sahara Sud 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

    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

    It is the coordinate system “Merchich / Sahara Sud”, a Projected (metres) system in the Lambert Conformal Conic family, identified worldwide by the code EPSG:26195.

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