# Projection Cesium

**URL:** <https://community.cesium.com/t/projection-cesium/7425>\
**Category:** CesiumJS\
**Created:** [September 12, 2018, 5:51pm UTC](https://community.cesium.com/t/projection-cesium/7425 "2018-09-12T17:51:40Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![DW1](https://avatars.discourse-cdn.com/v4/letter/d/c6cbf5/32.png) [@DW1](https://community.cesium.com/u/DW1)\
**Post date:** [September 12, 2018, 5:51pm UTC](https://community.cesium.com/t/projection-cesium/7425/1 "2018-09-12T17:51:40Z")

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Bonjour à tous, j'aimerais savoir quelle projection est utilisée par Cesium ? Est-ce que c'est la projection Mercator EPSG: 3857 ?

Merci par avance.

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**Author:** ![omar](https://sea2.discourse-cdn.com/cesium/user_avatar/community.cesium.com/omar/32/1999_2.png) [@omar](https://community.cesium.com/u/omar)\
**Post date:** [September 13, 2018, 3:45pm UTC](https://community.cesium.com/t/projection-cesium/7425/2 "2018-09-13T15:45:41Z")

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C’est vrai! Cesium uses Web Mercator ([https://epsg.io/3857](https://epsg.io/3857)) and the WGS84 ellipsoid.