Viewability Rate Calculator

Viewability Rate Calculator

We have provided two useful calculators below to work out your Viewability Rate as well as the number of Viewable Impressions you will have for any given Viewability Rate. 

Feel free to experiment with different scenarios in order to help you better understand this metric.

Viewability Rate Calculators:

if you know how many viewable impressions vs measured ad impressions you have then you can work out your viewability rate:

Viewability Rate Calculator

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Once you have your overall percentage, you can use this calculator for individual deals:

Viewable Impressions Calculator

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What Does Viewability Rate Mean?

Viewability Rate is an advertising metric that defines how many ad impressions on a site are actually viewed by users. The standard definition is that any ad which is at least 50% on screen for one second counts as being viewed, although this is still being debated.

Viewability Rate Formula

The Viewability Rate equation is:

Viewability Rate = (Viewable Ad Impressions ÷ Ad Impressions) x 100


 
Note: “Measured ad impressions” are used in the above formula (as opposed to regular ad impressions). This is because viewability/verification vendors are unable to measure 100% of total ad impressions.

As a result, measured ad impressions are always lower than ad impressions.

Measured ad impressions are simply the number of ad impressions measured by a company.

 


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