Mastering Lookalike Audiences: How to Use Them for Smarter Ad Targeting
What Exactly Are Lookalike Audiences?
Lookalike Audiences are an advanced advertising tool that allows businesses to expand their reach by finding people who share common traits with their current customers. This method of targeting is ideal for growing your audience with minimal guesswork, as it helps you focus on individuals who are more likely to engage with your brand based on their similarities to your existing audience.
Meta’s system analyzes traits such as age, location, interests, and online behavior to identify potential customers who match the profile of your top-performing audiences. This results in highly targeted ad campaigns that can effectively increase conversions and drive engagement.
“Lookalike Audiences simplify the process of finding new leads by targeting individuals who are statistically similar to your most engaged customers.” — Meta Business Help Center
How Lookalike Audiences Work
To create a Lookalike Audience, you first need to identify a “source audience.” This source could be a Custom Audience of existing leads, customers who have made purchases, or people who have interacted with your content. Once the system understands the traits of your source audience, it can then find new people who share those same characteristics.
You can choose how closely matched your new audience should be to the source by adjusting the audience size. A smaller, more focused audience (1%) will closely resemble your current customers, while a larger audience (5-10%) will broaden the reach but be less precisely matched.
Key Benefits of Lookalike Audiences
Lookalike Audiences are popular because they provide numerous advantages for businesses looking to expand their reach without sacrificing relevance:
- High Precision Targeting: By using your best-performing audience as the benchmark, you can focus on new customers who are likely to convert or engage.
- Flexible Audience Sizes: Depending on your marketing goals, you can adjust the audience size from narrowly focused (1%) to a broader group (10%).
- Cost-Effective Scaling: Lookalike Audiences help you scale your campaigns efficiently, reaching people who are more likely to engage without needing extensive manual targeting.
Step-by-Step Guide to Creating Lookalike Audiences
Here’s how you can create and set up Lookalike Audiences in Meta Business Suite:
- Choose Your Source Audience: This could be a group of leads, your email list, or a Custom Audience of previous customers.
- Access the Leads Centre: In Meta Business Suite, go to “Leads Centre” and click on “Engage Audience.”
- Create Lookalike Audience: Select “Create Lookalike Audience” from the dropdown menu and choose the source audience.
- Define the Audience Size: Adjust the percentage range to decide how closely you want the new audience to match your source. A smaller percentage (1-2%) provides a tighter match, while a larger one (5-10%) creates a broader group.
- Select a Location: Choose the geographic region you want to target with this audience.
- Review and Finalize: Click “Create” and let the system populate your audience, which may take a few hours to complete.
“Using high-quality source audiences can make a world of difference. Focus on your best customers to get the most relevant Lookalike Audience possible.” — Meta Audience Insights
Best Practices for Lookalike Audiences
To get the best results from your Lookalike Audience campaigns, consider the following best practices:
- Start with Your Best Customers: Rather than using all your leads, refine your source audience to only include your highest-value customers. This helps Meta find new people who are most likely to convert.
- Experiment with Audience Sizes: Test different audience sizes depending on your goals. A smaller percentage may lead to more precise targeting, while a broader percentage works for awareness campaigns.
- Pair Lookalike Audiences with Retargeting: Combine Lookalike Audiences with Custom Audiences for a full-funnel strategy. Target new potential leads with Lookalike Audiences and then retarget those who engage with Custom Audiences.
Optimizing Your Campaign with Lookalike Audiences
As your advertising campaign progresses, you may want to fine-tune your targeting. One way to do this is by creating sets of Lookalike Audiences with varying similarity levels. For instance:
- 0%-1% Audience: The people most similar to your source audience. This is best for driving conversions.
- 1%-3% Audience: A broader group that’s still closely matched but allows for scaling.
- 3%-6% Audience: Ideal for when you need greater reach, but the match isn’t as precise.
These audiences are non-overlapping, so you can bid differently depending on how valuable each segment is to your campaign.
“Lookalike Audiences help businesses optimize ad spending by targeting new audiences that are similar to their highest-value customers.” — Meta Business Help Center

Next Steps for Your Business
Lookalike Audiences are a powerful tool for businesses that want to grow their audience without sacrificing relevance. By starting with a high-quality source audience and following best practices, you can make your advertising more efficient and reach new potential customers who are most likely to convert.
Ready to take your advertising to the next level? Contact Anderson Collaborative today to discuss how we can help you implement Lookalike Audiences and other advanced targeting strategies for your business.