# Community Tutorial: UE5 Niagara Tutorial: How to Calculate Dynamic Particle Radius 

**URL:** <https://forums.unrealengine.com/t/community-tutorial-ue5-niagara-tutorial-how-to-calculate-dynamic-particle-radius/2852245>\
**Category:** Tutorial & Course Discussions\
**Tags:** unreal-engine\
**Created:** [November 8, 2026, 6:00am UTC](https://forums.unrealengine.com/t/community-tutorial-ue5-niagara-tutorial-how-to-calculate-dynamic-particle-radius/2852245 "2026-11-08T06:00:07Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![Cghow](https://d1ap1mz92jnks1.cloudfront.net/user_avatar/forums.unrealengine.com/cghow/32/1212725_2.png) [@Cghow](https://forums.unrealengine.com/u/Cghow)\
**Post date:** [November 8, 2026, 6:00am UTC](https://forums.unrealengine.com/t/community-tutorial-ue5-niagara-tutorial-how-to-calculate-dynamic-particle-radius/2852245/1 "2026-11-08T06:00:07Z")

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In this Unreal Engine 5 Niagara tutorial, you will learn how to use the Calculate Particle Radius dynamic input to drive particle properties like color and intensity based on particle size.  
  
[https://dev.epicgames.com/community/learning/tutorials/BbovO/unreal-engine-ue5-niagara-tutorial-how-to-calculate-dynamic-particle-radius](https://dev.epicgames.com/community/learning/tutorials/BbovO/unreal-engine-ue5-niagara-tutorial-how-to-calculate-dynamic-particle-radius)