Lookalike Audiences
meta-specificLookalike Audiences
Definition
Audiences created by Meta that share similar characteristics to your existing customers or website visitors.
How to Calculate Lookalike Audiences
N/A - Audience Targeting Method
Example
Scenario: Creating 1% lookalike from 1,000 purchasers
Calculation: Meta finds ~2.3M people in US most similar to your customers
What's a Good Lookalike Audiences?
1-2% lookalikes often perform best, 3-10% for broader reach testing
Common Mistakes
- Using small or poor quality source audiences
- Not testing different lookalike percentages
💡 Expert Tip
Use purchasers, not website visitors, as source audience when possible. 1,000+ source audience members recommended for stability.
— Based on $100M+ in managed ad spend
Related Terms
By Kristijan Arapov • Based on $100M+ in managed ad spend • Updated 2026