EPSG:32631 WGS 84 / UTM zone 31N
Projected system (Transverse Mercator) in use: World - N hemisphere - 0°E to 6°E - 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:32631 |
|---|---|
| Name | WGS 84 / UTM zone 31N |
| Type | Projected system — Transverse Mercator |
| Area of use |
World - N hemisphere - 0°E to 6°E - by country Between 0°E and 6°E, northern hemisphere between equator and 84°N, onshore and offshore. Algeria. Andorra. Belgium. Benin. Burkina Faso. Denmark - North Sea. France. Germany - North Sea. Ghana. Luxembourg. Mali. Netherlands. Niger. Nigeria. Norway. Spain. Togo. United Kingdom (UK) - North Sea. |
| Bounds | W 0,00° · S 0,00° · E 6,00° · N 84,00° |
| Also covers | Algeria, Andorra, Belgium, Benin, Burkina Faso, Denmark, France, Germany, Ghana, Luxembourg, Mali, Netherlands, Niger, Nigeria, Norway, Spain, Togo, United Kingdom |
| 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 U31), with the reference cities of the guide. |
Projection parameters
| Parameter | Value | Unit |
|---|---|---|
| Latitude of natural origin | 0 | degree |
| Longitude of natural origin | 3 | degree |
| Scale factor at natural origin | 0.9996 | unity |
| False easting | 500000 | metre |
| False northing | 0 | metre |
proj4 definition
+proj=utm +zone=31 +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:32631.
WKT (ESRI format, the .prj content)
PROJCS["WGS_1984_UTM_Zone_31N",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",3.0],PARAMETER["Scale_Factor",0.9996],PARAMETER["Latitude_Of_Origin",0.0],UNIT["Meter",1.0]]Other systems — Algeria
- EPSG:4671Voirol 1879
- EPSG:4811Voirol 1875 (Paris)
- EPSG:4821Voirol 1879 (Paris)
- EPSG:10299RGSH2020
- EPSG:22229RGSH2020 / UTM zone 29N
- EPSG:22230RGSH2020 / UTM zone 30N
- EPSG:22231RGSH2020 / UTM zone 31N
- EPSG:22232RGSH2020 / UTM zone 32N
- EPSG:30491Voirol 1875 / Nord Algerie (ancienne)
- EPSG:30492Voirol 1875 / Sud Algerie (ancienne)
- EPSG:30493Voirol 1879 / Nord Algerie (ancienne)
- EPSG:30494Voirol 1879 / Sud Algerie (ancienne)
- EPSG:30729Nord Sahara 1959 / UTM zone 29N
- EPSG:30730Nord Sahara 1959 / UTM zone 30N
- EPSG:30731Nord Sahara 1959 / UTM zone 31N
- EPSG:30732Nord Sahara 1959 / UTM zone 32N
- EPSG:30791Nord Sahara 1959 / Nord Algerie
- EPSG:30792Nord Sahara 1959 / Sud Algerie
Source: EPSG registry v11.022 (IOGP), through the PROJ database. Always check a code on epsg.org before contractual work.