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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

MetricDefinition
People who saw adIndividual users who viewed your ad at least once during the reporting period
Metadata
TypeNumber
Data SourceMeta Ads
AggregationCount Distinct

Example

Your Meta campaign reached 45,000 unique people in the last 7 days.
CampaignReachImpressionsFrequency
Summer Sale45,000135,0003.0
Brand Awareness28,00056,0002.0
Retargeting8,50042,5005.0
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

ScenarioAction
High impressions but low conversionsCheck if reach is low—you may be oversaturating a small audience
Planning brand awareness campaignsUse reach to estimate total audience exposure
Comparing campaign efficiencyEvaluate cost per person reached (CPP) across campaigns
Managing ad fatigueMonitor reach vs frequency to avoid showing ads too often

MetricRelationship
Meta ImpressionsTotal ad views; reach × frequency = impressions
Meta CPPCost to reach each unique person
See all Meta Audience metrics →