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    EPSG reference

    EPSG:22230 — RGSH2020 / UTM zone 30N

    RGSH2020 / UTM zone 30N (EPSG:22230) — a Projected (metres) system on the GRS80 datum, used in Algeria. Parameters, proj4, WKT, accuracy ±0.1 m, plus a free converter to…

    At a glance

    EPSG
    22230
    Name
    RGSH2020 / UTM zone 30N
    Kind
    Projected (metres)
    Family
    Universal Transverse Mercator (UTM)
    Ellipsoid
    GRS80
    Accuracy
    ±0.1 m (vs PROJ)
    Countries
    Algeria
    Convert from this system now

    Area of use

    West-6.00°
    South21.82°
    East0.00°
    North37.01°

    Projection parameters

    Projectionutm
    UTM zone30
    EllipsoidGRS80
    Unitsm
    proj4
    +proj=utm +zone=30 +ellps=GRS80 +units=m +no_defs
    WKT (ESRI)
    PROJCS["RGSH2020 / UTM zone 30N",GEOGCS["GCS_RGSH2020 / UTM zone 30N",DATUM["D_GRS_1980",SPHEROID["GRS_1980",6378137,298.257222101]],PRIMEM["Greenwich",0],UNIT["Degree",0.0174532925199433]],PROJECTION["Transverse_Mercator"],PARAMETER["False_Easting",500000],PARAMETER["False_Northing",0],PARAMETER["Central_Meridian",-3],PARAMETER["Scale_Factor",0.9996],PARAMETER["Latitude_Of_Origin",0],UNIT["Meter",1],AUTHORITY["EPSG","22230"]]

    Sample conversion

    Centre of the area of use: WGS84 -3.00000, 29.41500 → EPSG:22230 500000.000, 3253965.484

    Values are within ±0.1 m at the test point.

    About the Universal Transverse Mercator (UTM) family

    RGSH2020 / UTM zone 30N is a Universal Transverse Mercator zone — a 6°-wide belt of the worldwide UTM system, in metres, centred on a meridian carefully chosen so distortion stays low across the zone. It is the everyday working grid for GPS-derived surveying in Algeria.

    The classic field mistake with UTM is using the wrong zone: a point one zone away is easily hundreds of kilometres off. Always confirm the zone number (and the hemisphere) before importing coordinates, and remember that UTM eastings are offset by a 500 km false easting so they never go negative.

    Related systems

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

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    FAQ

    It is the coordinate system “RGSH2020 / UTM zone 30N”, a Projected (metres) system in the Universal Transverse Mercator (UTM) family, identified worldwide by the code EPSG:22230.

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