EPSG:9333 — KSA-GRF17
KSA-GRF17 (EPSG:9333) — a Geographic (degrees) system on the GRS80 datum, used in Saudi Arabia. Parameters, proj4, WKT, accuracy ±0.3 m, plus a free converter to WGS84 a…
At a glance
- EPSG
- 9333
- Name
- KSA-GRF17
- Kind
- Geographic (degrees)
- Family
- Geographic (longitude/latitude)
- Ellipsoid
- GRS80
- Accuracy
- ±0.3 m (vs PROJ)
- Countries
- Saudi Arabia
Area of use
| West | 34.44° |
| South | 16.29° |
| East | 55.67° |
| North | 32.16° |
Projection parameters
| Projection | longlat |
| Ellipsoid | GRS80 |
+proj=longlat +ellps=GRS80 +no_defs
GEOGCS["GCS_KSA-GRF17",DATUM["D_GRS_1980",SPHEROID["GRS_1980",6378137,298.257222101]],PRIMEM["Greenwich",0],UNIT["Degree",0.0174532925199433],AUTHORITY["EPSG","9333"]]
Sample conversion
Saudi Arabia capital: WGS84 46.67530, 24.71360 → EPSG:9333 46.6753000, 24.7136000
Values are within ±0.3 m at the test point.
About the Geographic (longitude/latitude) family
KSA-GRF17 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:2318 — Ain el Abd / Aramco Lambert
- EPSG:4204 — Ain el Abd
- EPSG:8818 — MTRF-2000
- EPSG:8836 — MTRF-2000 / UTM zone 36N
- EPSG:8837 — MTRF-2000 / UTM zone 37N
- EPSG:8838 — MTRF-2000 / UTM zone 38N
- EPSG:32636 — WGS 84 / UTM zone 36N
- EPSG:32637 — WGS 84 / UTM zone 37N
- EPSG:32638 — WGS 84 / UTM zone 38N
- EPSG:32639 — WGS 84 / UTM zone 39N
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