EPSG:32628 WGS 84 / UTM zone 28N
Projected system (Transverse Mercator) in use: World - N hemisphere - 18°W to 12°W - by country. The full definition below, and conversion in one click.
EPSG publishes no simple transformation to WGS 84 for this datum: conversion works on the ellipsoid alone and can be off by tens of metres.
| Code | EPSG:32628 |
|---|---|
| Name | WGS 84 / UTM zone 28N |
| Type | Projected system — Transverse Mercator |
| Area of use |
World - N hemisphere - 18°W to 12°W - by country Between 18°W and 12°W, northern hemisphere between equator and 84°N, onshore and offshore. Gambia. Greenland. Guinea. Guinea-Bissau. Iceland. Ireland - offshore Porcupine Basin. Mauritania. Morocco. Senegal. Sierra Leone. Western Sahara. |
| Bounds | W -18,00° · S 0,00° · E -12,00° · N 84,00° |
| Also covers | Gambia, Greenland, Guinea, Guinea-Bissau, Iceland, Ireland, Mauritania, Morocco, Senegal, Sierra Leone |
| Datum | World Geodetic System 1984 |
| Ellipsoid | WGS 84 a = 6378137 m · 1/f = 298.257223563 |
| Base geographic system | EPSG:4326 — WGS 84 |
| Unit | metre (E east, N north) |
| Transformation to WGS 84 | No simple transformation published (ellipsoid alone) |
| Scope | Navigation and medium accuracy spatial referencing. |
| In Carte | Built-in grid (code U28), with the reference cities of the guide. |
Projection parameters
| Parameter | Value | Unit |
|---|---|---|
| Latitude of natural origin | 0 | degree |
| Longitude of natural origin | -15 | degree |
| Scale factor at natural origin | 0.9996 | unity |
| False easting | 500000 | metre |
| False northing | 0 | metre |
proj4 definition
+proj=utm +zone=28 +datum=WGS84 +units=m +no_defsPaste it into QGIS, proj4js, PostGIS (spatial_ref_sys) or GDAL. +towgs84 carries the EPSG transformation to WGS 84; the official code stays EPSG:32628.
WKT (ESRI format, the .prj content)
PROJCS["WGS_1984_UTM_Zone_28N",GEOGCS["GCS_WGS_1984",DATUM["D_WGS_1984",SPHEROID["WGS_1984",6378137.0,298.257223563]],PRIMEM["Greenwich",0.0],UNIT["Degree",0.0174532925199433]],PROJECTION["Transverse_Mercator"],PARAMETER["False_Easting",500000.0],PARAMETER["False_Northing",0.0],PARAMETER["Central_Meridian",-15.0],PARAMETER["Scale_Factor",0.9996],PARAMETER["Latitude_Of_Origin",0.0],UNIT["Meter",1.0]]Other systems — Gambia
Source: EPSG registry v11.022 (IOGP), through the PROJ database. Always check a code on epsg.org before contractual work.