Why frequency matters more than most advertisers track
Frequency — how many times the average person in your audience sees your ad — is one of the most under-monitored metrics in a Meta account, because CPM and CTR dashboards don't make it obvious when a fixed budget against a shrinking effective audience is quietly pushing frequency past the point where people tune out. Roughly 2–4 impressions per person per week is the commonly cited healthy range: enough repetition to build recognition, not so much that the same faces see the same creative until they actively ignore it. This calculator turns your audience size, budget and CPM into a projected weekly frequency so you can see where you actually sit before the numbers show up as rising CPMs and falling CTR in the account itself.
"Weeks until creative burnout" is a directional estimate of when cumulative frequency crosses the fatigue threshold at your current spend rate — treat it as a planning signal to have fresh creative ready, not a hard cutoff after which the campaign stops working. Retargeting and bottom-funnel campaigns can often sustain higher frequency intentionally since repetition itself is doing useful work; this tool is most useful for broad prospecting campaigns where fatigue erodes efficiency quietly. For the benchmark data behind the CPM default, see the CPL benchmark lookup, and for ongoing creative refresh management, Meta Ads.