Reach estimates how many unique people saw an ad, while impressions count the total number of times the ad was displayed. Impressions can exceed reach because one person may see the ad more than once.
Why are impressions higher than reach?
If the same person is served an ad multiple times, each display can add an impression while that person generally remains one reached account or person within the reporting model. Repeated delivery may be intentional, incidental, or caused by a narrow audience and ongoing budget.
Both values are modeled or estimated according to the platform’s current measurement methods. They should not be treated as a perfect census of individual human attention.
How does frequency relate to reach and impressions?
Frequency is commonly calculated as impressions divided by reach. It describes average exposure, not the exact number of times every person saw the ad. Some people may see it once while others see it far more often.
Review frequency with results, audience size, creative fatigue, campaign duration, and placement mix. There is no universal “perfect frequency” for every goal and market.
Which metric matters for each campaign goal?
Reach can help evaluate how broadly a message was distributed, while impressions show total delivery. Awareness campaigns may use both, but lead and sales campaigns should prioritize qualified conversions, cost, value, and downstream customer quality.
A high impression count does not prove that people noticed, remembered, or acted on the message. Use video, engagement, landing-page, and conversion data to understand the next steps.
How should a small business compare results?
Compare like-for-like campaigns over consistent date ranges and attribution settings. Segment by placement, audience, creative, and geography only when there is enough data to support a useful decision.
Document major budget, audience, creative, and measurement changes. Platform definitions and estimated metrics can change, so use the current in-product description as the final reference.
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Disclaimer: This article provides general marketing information. Meta’s metric definitions and estimation methods change, and no reach, conversion, or business result is guaranteed.