Frequency
Frequency is the average number of times each person saw your ad over a period, calculated as impressions divided by reach. Meta reports it for an ad, an ad set or a campaign, and marks it as an estimated metric. It is an average, so some people saw the ad far more often than the number shows, and Meta publishes no frequency limit to stay under.
How does Meta define frequency?
Meta's Frequency metric page calls it "the average number of times each Meta Account saw your ad", calculated as "impressions divided by reach". The only figure it prints is a description, not a target: "Frequency may average 1 to 2 per ad set or may be much higher, depending on your budget, audience size and schedule."
The same page tells you what to do with it: "monitor frequency along with your results and ad relevance diagnostics", because if "performance begins to drop as your frequency numbers rise, your target audience may be experiencing ad fatigue".
What is a good frequency for Meta ads?
Meta doesn't give one. Its troubleshooting pages for costs that are too high treat frequency as a cue alongside the delivery status:
If frequency is high, or if the delivery status reads 'Creative fatigue,' your ad set or ad may be experiencing creative fatigue.
None of those pages says how high "high" is. The 2 to 3, 3.0 and 4.0 to 6.0 thresholds that guides quote appear on no Meta page we read. The full comparison lists where those numbers come from.
Why can't frequency show creative fatigue on its own?
Meta's own analysts explained it in a 2023 post, in a section titled "Dangers of measuring Frequency". Two problems:
| Problem | Meta's words |
|---|---|
| Wrong level | "Frequency is at an ad/ad set/campaign level. Fatigue happens at a creative level." |
| An average | It "presents an average effect over a period of time and not the marginal effect" |
The post's example: 100,000 people see an ad once on day one, 50,000 of them see it twice on day two, and 25,000 of them see it four times on day three. Impressions divided by reach is 3, but the people reached on day three have seen it seven times. The same image running in three ads makes it worse: each ad shows a modest frequency while the viewer tires of the picture. That is why Meta's creative fatigue status compares cost per result with your past ads instead.
Can you control frequency?
Yes, with Meta's frequency controls for auction. Target frequency "aims to deliver a specific number of impressions per person per week", and only for Reach or ThruPlay performance goals with a lifetime budget, in ad sets that "don't have a bid control" and campaigns "between 7-90 days". A frequency cap "limits the maximum number of times your ad is shown to each person". A campaign cap applies "across all ad sets within the campaign", so it can't limit exposures from your other campaigns.
What it means for your ads
- Read frequency next to results, never alone. A rising number with steady cost per result is not a problem. A rising number with rising costs is the case Meta tells you to look into.
- Count by picture, not by ad. If one image runs in several ad sets, add their reach up in your head. No single ad's frequency describes what a viewer has seen.
- Fix fatigue with new creative, not a cap. A cap limits repetition; it doesn't replace an ad people have stopped responding to.
Common mistakes
- Pausing at a magic number. A rule like "pause at 3" is someone else's habit, not Meta's guidance.
- Reading it in week one. Early costs during the learning phase "aren't necessarily indicative of future performance", in Meta's words, whatever frequency says.
Sources
- Frequency — Meta Business Help Center metric glossary: the definition, "impressions divided by reach", "may average 1 to 2 per ad set" and the "ad fatigue" guidance (rendered in a browser, accessed 2026-10-16)
- Troubleshoot ad performance: Your costs are too high — Meta Business Help Center: "If frequency is high, or if the delivery status reads 'Creative fatigue'" (rendered in a browser, accessed 2026-10-16)
- About frequency controls for auction — Meta Business Help Center: target frequency, frequency cap and campaign-level scope (rendered in a browser, accessed 2026-10-16)
- About the learning phase — Meta Business Help Center: results during learning "aren't necessarily indicative of future performance" (rendered in a browser, accessed 2026-10-16)
- Creative Fatigue: How advertisers can improve performance by managing repeated exposures — Analytics at Meta, 10 May 2023: "Dangers of measuring Frequency" and the three-day example (read from the Internet Archive's captures of 2023-10-14 and 2025-12-09, accessed 2026-10-16)
Meta's help pages are client-rendered and show no date; they were read in a real browser on 16 October 2026 for the creative fatigue post. Meta revises them without notice, so check the source before acting on any of it.
Terrads makes new image and video ads that differ in concept and layout, so a tired picture can be replaced by a genuinely new one.