---
title: "What is Lift Analysis?"
description: "Learn how to compare funnels with Lift Analysis to measure performance impact."
url: https://help.knotch.com/en/articles/90-what-is-lift-analysis
collection: "Funnels"
updated: 2025-07-31
language: en
---

# What is Lift Analysis?

Learn how to compare funnels with Lift Analysis to measure performance impact.

**Lift Analysis** lets you compare a **Control Funnel** to one or more **Variant Funnels** to measure impact.

To run a Lift Analysis:

1.  Click the **Lift Analysis button** above the Funnels table
    
2.  Select 1 funnel as your Control
    
3.  Select 1+ Variant funnels
    
4.  Click Compare
    

You’ll see an updated table with your control and variant funnels. You’ll also see a new column, Lift.  
**Lift = ((Variant CR – Control CR) ÷ Control CR) × 100**

Use Lift Analysis to:

-   Measure A/B test impact
    
-   Compare campaign or content variants
    
-   Prove improvements in funnel progression
    

You can also **save Lift comparisons** as Custom Views.

**Important:** Lift Analysis does **not** automatically calculate statistical significance.

While Lift shows the relative percentage difference between your Control and Variant funnels, whether this difference is _statistically significant_ depends on factors such as:

-   Funnel sample size (number of users in each funnel)
    
-   Conversion rate variance
    
-   Confidence threshold (e.g. 95%)
    

Because you can compare **any** funnels, some comparisons may not have enough data to produce reliable results.

**Best Practice:**

-   Use Lift Analysis for directional insights.
    
-   For formal A/B testing, ensure a large enough sample size or use an external statistical significance calculator.
    
-   When in doubt, consult your CSM for guidance.