EPSG:4229 — Egypt 1907
Egypt 1907 (EPSG:4229) — a Geographic (degrees) system on the helmert datum, used in Egypt. Parameters, proj4, WKT, accuracy ±1.8 m, plus a free converter to WGS84 and U…
At a glance
- EPSG
- 4229
- Name
- Egypt 1907
- Kind
- Geographic (degrees)
- Family
- Geographic (longitude/latitude)
- Ellipsoid
- helmert
- Accuracy
- ±1.8 m (vs PROJ)
- Countries
- Egypt
Area of use
| West | 24.70° |
| South | 21.89° |
| East | 37.91° |
| North | 33.82° |
Projection parameters
| Projection | longlat |
| Ellipsoid | helmert |
| Helmert shift to WGS84 | -130,110,-13,0,0,0,0 |
+proj=longlat +ellps=helmert +no_defs +towgs84=-130,110,-13,0,0,0,0
GEOGCS["GCS_Egypt 1907",DATUM["D_Helmert_1906",SPHEROID["Helmert_1906",6378200,298.3],TOWGS84[-130,110,-13,0,0,0,0]],PRIMEM["Greenwich",0],UNIT["Degree",0.0174532925199433],AUTHORITY["EPSG","4229"]]
Sample conversion
Egypt capital: WGS84 31.23570, 30.04440 → EPSG:4229 31.2340258, 30.0442348
Values are within ±1.8 m at the test point.
About the Geographic (longitude/latitude) family
Egypt 1907 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.
Related systems
- EPSG:3355 — Egypt Gulf of Suez S-650 TL / Red Belt
- EPSG:4199 — Egypt 1930
- EPSG:4706 — Egypt Gulf of Suez S-650 TL
- EPSG:22991 — Egypt 1907 / Blue Belt
- EPSG:22992 — Egypt 1907 / Red Belt
- EPSG:22993 — Egypt 1907 / Purple Belt
- EPSG:32635 — WGS 84 / UTM zone 35N
- EPSG:32636 — WGS 84 / UTM zone 36N
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