# What is the unit of size/width/length for predefined mesh (e.g. plane) in babylon js

**URL:** <https://forum.babylonjs.com/t/what-is-the-unit-of-size-width-length-for-predefined-mesh-e-g-plane-in-babylon-js/27743>\
**Category:** Questions\
**Created:** [February 17, 2022, 11:44am UTC](https://forum.babylonjs.com/t/what-is-the-unit-of-size-width-length-for-predefined-mesh-e-g-plane-in-babylon-js/27743 "2022-02-17T11:44:05Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![Bhavna](https://avatars.discourse-cdn.com/v4/letter/b/71e660/32.png) [@Bhavna](https://forum.babylonjs.com/u/Bhavna)\
**Post date:** [February 17, 2022, 11:44am UTC](https://forum.babylonjs.com/t/what-is-the-unit-of-size-width-length-for-predefined-mesh-e-g-plane-in-babylon-js/27743/1 "2022-02-17T11:44:05Z")

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![image](https://us1.discourse-cdn.com/flex024/uploads/babylonjs/original/3X/3/8/387430bf934823e1d9af6e8eee4787d087e3643a.png)

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**Author:** ![Deltakosh](https://sea2.discourse-cdn.com/flex024/user_avatar/forum.babylonjs.com/deltakosh/32/26635_2.png) [@Deltakosh](https://forum.babylonjs.com/u/Deltakosh)\
**Post date:** [February 17, 2022, 4:43pm UTC](https://forum.babylonjs.com/t/what-is-the-unit-of-size-width-length-for-predefined-mesh-e-g-plane-in-babylon-js/27743/2 "2022-02-17T16:43:54Z")

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Hey and welcome!

There is no unit. you decide what does it means as you control your scene. Most of the time I go with 1 unit = 1m. But it is up to you