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    EPSG reference

    EPSG:4199 — Egypt 1930

    Egypt 1930 (EPSG:4199) — a Geographic (degrees) system on the intl datum, used in Egypt. Parameters, proj4, WKT, accuracy ±0.1 m, plus a free converter to WGS84 and UTM.

    At a glance

    EPSG
    4199
    Name
    Egypt 1930
    Kind
    Geographic (degrees)
    Family
    Geographic (longitude/latitude)
    Ellipsoid
    intl
    Accuracy
    ±0.1 m (vs PROJ)
    Countries
    Egypt

    Area of use

    West24.70°
    South21.97°
    East36.95°
    North31.68°

    Projection parameters

    Projectionlonglat
    Ellipsoidintl
    proj4
    +proj=longlat +ellps=intl +no_defs
    WKT (ESRI)
    GEOGCS["GCS_Egypt 1930",DATUM["D_International_1924",SPHEROID["International_1924",6378388,297]],PRIMEM["Greenwich",0],UNIT["Degree",0.0174532925199433],AUTHORITY["EPSG","4199"]]

    Sample conversion

    Egypt capital: WGS84 31.23570, 30.04440 → EPSG:4199 31.2357000, 30.0444000

    Values are within ±0.1 m at the test point.

    About the Geographic (longitude/latitude) family

    Egypt 1930 is a geographic coordinate system: positions are longitude and latitude in degrees on its reference ellipsoid, not metres on a plane. It is the datum layer that projected grids (UTM, national belts) are built upon.

    Because it is unprojected, distances and areas cannot be measured directly from its degrees — convert to a metric projected system (or use a geodesic calculation) first. This page's converter does exactly that.

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

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    FAQ

    It is the coordinate system “Egypt 1930”, a Geographic (degrees) system in the Geographic (longitude/latitude) family, identified worldwide by the code EPSG:4199.

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