---
title: rateMultiplier
product: Unity Editor
version: '7000.0'
latest_version: '7000.0'
status: This page documents version 7000.0. The latest version is 7000.0.
canonical: https://docs.unity.com/en-us/engine/7000.0/script-reference/unityengine/particlesystem/emissionmodule/ratemultiplier
latest_url: https://docs.unity.com/en-us/engine/7000.0/script-reference/unityengine/particlesystem/emissionmodule/ratemultiplier.md
last_updated: 2026-10-07
generated_at: 2026-11-11T17:39:09.882Z
locale: en-us
---

# rateMultiplier

> Change the rate multiplier.

## Definition

* **Type:** Property
* **Namespace:** [UnityEngine](/engine/7000.0/script-reference/unityengine.md)
* **Assembly:** UnityEngine.ParticleSystemModule

> **Warning:**
>
> **Deprecated.** rateMultiplier property is deprecated. Use rateOverTimeMultiplier or rateOverDistanceMultiplier instead.

```csharp
public float rateMultiplier { get; set; }
```

### Remarks

Changing this property is more efficient than accessing the entire curve, if you only want to change the overall rate multiplier.