Facebook Ad Frequency: What Is the Ideal Number?

Learn everything you need to know about ad frequency, a hugely important metric in Meta Ads (formerly Facebook Ads).

From basic concepts to advanced topics, so entrepreneurs and marketing professionals can optimize their paid media investments.

We also left a Bonus tip at the end of the article to help you with your next campaign!

• What is Ad Frequency in Meta Ads?
• Where and how should I track this metric?
• Should I worry about frequency at every level of the account?
• Which factors relate to this metric?
• So what is the ideal frequency for my ads?
• But I have dozens, hundreds, or even thousands of ads to monitor. What should I do?
• BONUS tip: turn on a robot to optimize your campaigns!

What is Ad Frequency in Meta Ads?

First, Frequency is defined as the ratio, over any analyzed period, between two other metrics: Impressions and Reach.

In other words, it is the average number of times the same ad was shown to each person reached.

And what do we mean by “any analyzed period”?

Well, most people do not realize this measure changes over time. Frequency will show different values when we evaluate different periods.

Where and how should I track this metric?

First, go to the ads section of Ads Manager and set the analysis period.

If frequency is not being displayed yet, you will need to add a new column. To do that, click the “Columns” dropdown.

Next, select “Customize Columns” and, in the window that opens, check the “Frequency” box. Then click the “Apply” button to finish the change.

Each row in the “Ads” tab will correspond to a specific ad, each with its own frequency.

Likewise, the same logic applies to Ad Sets, Campaigns, and the Account. If the image in the example above looks very different from your usual view, it must be because you are not yet using Meta Business Manager (formerly Facebook Business).

In that case, we strongly recommend making the switch: it is free, quick, and easy.

Should I worry about frequency at every level of the account?

Definitely, since it is common to have Campaigns containing several Ad Sets, each with multiple Ads.

Tracking creative frequency lets you determine when fatigue has set in. Similarly, checking it for an Ad Set will show how a target audience behaves. Finally, for a Campaign, it can summarize how many touchpoints a brand makes before reaching each goal.

Below is a simplified illustration of 3 possible scenarios with the “Example” Ad Set, which contains two ads: “A” and “B”.

In the first situation, each ad reaches 10 people and the Ad Set reaches 20. That means no one reached by ad A saw ad B, and vice versa.

So the Ad Set's frequency in scenario 1 is simply the arithmetic mean of its ads.

In the second scenario, the fact that the Ad Set's reach is smaller than the sum of its ads indicates that some people (in this case, five) were reached by both ad A and ad B.

Therefore, the Ad Set's frequency can only be obtained by dividing its impressions by its reach.

Finally, scenario 3 shows the opposite extreme, in which both ads reached exactly the same people. Notice how much that Ad Set's frequency increases.

In this case, a given audience would have been hit by this brand 5 times within a certain time window!

Which factors relate to this metric?

In short: more money buys more impressions.

So the bigger the budget for a given audience, the faster we reach everyone in it. Soon we start repeating ads people have already seen.

With a fixed budget, we can therefore shrink an audience to speed up ad repetition. Conversely, we can widen the audience to slow down repetition and, as a result, control frequency.

Beyond that, many other variables can change how your ad frequency evolves, even if on a smaller scale.

For example, times of day and placements can show significant fluctuations in the price per impression. That makes it essential to control where and when you want to appear.

So what is the ideal frequency for my ads?

Although it varies a bit with each campaign's objective, here are the values considered ideal and what you should avoid.

According to a study by Nielsen, we should aim for a frequency between 2 and 2.5 per week. That hits the sweet spot for brand awareness.

Much higher frequencies waste budget by no longer reaching new people. In extreme cases, they even create a negative effect on the brand, becoming tiresome to the target audience, which stops responding.

Monitoring this metric should also go hand in hand with how long the ads have been running. We usually see ad performance drop after two weeks of delivery. This is the so-called creative fatigue, and today Ads Manager itself warns you when it hits, showing the “Creative fatigue” status in the delivery column.

The changes you make to creatives do not need to be huge or labor-intensive; a small refresh is enough. A simple change of colors may be all it takes. And when torn between two versions, an A/B test settles it.

Even more practical: when planning your campaign, leave creative variations ready in advance, factoring in how long the campaign will stay live. For example, if the campaign will run for two months and we swap creatives every two weeks, we should have at least 4 variations on hand.

But I have dozens, hundreds, or even thousands of ads to monitor. What should I do?

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