Sierra Leone: coordinate systems
6 current national systems, and 2 regional or world-wide systems that also cover this country. Every code opens its page: definition, parameters, proj4, WKT.
Projected systems 4
Plane X/Y coordinates (Easting, Northing), most often in metres: what plans, cadastre and surveys use.
| Code | Name | Conversion |
|---|---|---|
| EPSG:2159 | Sierra Leone 1924 / New Colony Grid | Converts here |
| EPSG:2160 | Sierra Leone 1924 / New War Office Grid | Converts here |
| EPSG:2161 | Sierra Leone 1968 / UTM zone 28N | Converts here |
| EPSG:2162 | Sierra Leone 1968 / UTM zone 29N | Converts here |
Geographic systems 2
Latitude and longitude on the ellipsoid of a datum. They underlie the projected systems of the same datum.
| Code | Name | Conversion |
|---|---|---|
| EPSG:4174 | Sierra Leone 1924 | Converts here |
| EPSG:4175 | Sierra Leone 1968 | Converts here |
Regional and world-wide systems that also cover this country 2
UTM zones, continental grids and frames shared with other countries.
| Code | Name | Conversion |
|---|---|---|
| EPSG:32628 | WGS 84 / UTM zone 28N | Converts here |
| EPSG:32629 | WGS 84 / UTM zone 29N | Converts here |
Which system should I use?
For a plan or a survey in this country, use the national system named by the specification or the cadastre. A UTM zone suits a project that spills over national zones; WGS 84 (EPSG:4326) is for exchanging with a GPS.