GA4 Conversion Rate Calculator
Calculate Session and User conversion rates for Google Analytics 4 metrics.
Percentage of sessions that resulted in a conversion.
Percentage of users who triggered at least one conversion.
How to Calculate Conversion Rate in GA4
In Google Analytics 4 (GA4), the conversion rate calculation differs significantly from the old Universal Analytics. Instead of a single "Conversion Rate" metric, GA4 provides two distinct perspectives: Session Conversion Rate and User Conversion Rate. Understanding these allows you to measure both campaign effectiveness and audience loyalty.
The Formulas
To manually calculate these rates or verify your reports, use the following formulas:
- Session Conversion Rate: (Number of Sessions in which a conversion event was triggered) ÷ (Total Number of Sessions) × 100
- User Conversion Rate: (Number of Users who triggered a conversion event) ÷ (Total Number of Users) × 100
Example Calculation
Imagine your website had the following data over 30 days:
- Total Sessions: 10,000
- Sessions with Conversions: 300
- Total Users: 8,000
- Users with Conversions: 250
Using the formulas:
Session CR = (300 / 10,000) * 100 = 3.00%
User CR = (250 / 8,000) * 100 = 3.12%
How to Find Conversion Rates in GA4 Reports
By default, conversion rates may not appear in your standard reports. Here is how to enable them:
- Navigate to Reports > Engagement > Traffic acquisition (for Session CR).
- Click the Customize report pencil icon in the top right.
- Click on Metrics.
- Click Add metric and search for "Session conversion rate" or "User conversion rate".
- Click Apply and then Save the report.
Why do the rates differ?
User Conversion Rate is often higher or more stable because it focuses on the individual's behavior across multiple visits. Session Conversion Rate measures the "intent" of a specific visit. If a user visits five times but only buys once, their User CR is 100% (they are a converter), but their Session CR is 20% (1 out of 5 sessions converted).