Meta Reach: Unique People Who Saw Your Ads

Meta Reach measures the number of unique people who saw your Meta ads at least once.

Formula

Meta Reach = COUNT DISTINCT ( People who saw ad )

Formula Components

Metric	Definition
People who saw ad	Individual users who viewed your ad at least once during the reporting period

Metadata
Type	Number
Data Source	Meta Ads
Aggregation	Count Distinct

Example

Your Meta campaign reached 45,000 unique people in the last 7 days.

Campaign	Reach	Impressions	Frequency
Summer Sale	45,000	135,000	3.0
Brand Awareness	28,000	56,000	2.0
Retargeting	8,500	42,500	5.0

The Summer Sale campaign reached 45,000 unique people who saw the ad an average of 3 times each (135,000 impressions ÷ 45,000 reach).

How It Works

Reach counts each person only once, regardless of how many times they saw your ad. Meta tracks this using anonymized user identifiers across their platforms (Facebook, Instagram, Messenger, Audience Network). This differs from impressions, which count every ad view including repeat views to the same person.

When to Use

Scenario	Action
High impressions but low conversions	Check if reach is low—you may be oversaturating a small audience
Planning brand awareness campaigns	Use reach to estimate total audience exposure
Comparing campaign efficiency	Evaluate cost per person reached (CPP) across campaigns
Managing ad fatigue	Monitor reach vs frequency to avoid showing ads too often

Metric	Relationship
Meta Impressions	Total ad views; reach × frequency = impressions
Meta CPP	Cost to reach each unique person

See all Meta Audience metrics →

Meta Total Impressions Meta Frequency

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​Formula

​Formula Components

​Example

​How It Works

​When to Use

​Related Metrics

Formula

Formula Components

Example

How It Works

When to Use

Related Metrics