Enter the total number of impressions and the average frequency to calculate the unique reach of your campaign. The unique reach is the estimated number of distinct individuals exposed to your advertisement.

Unique Reach Formula

The following formula is used to calculate the unique reach:

UR = I / F

Variables:

  • UR is the unique reach
  • I is the total number of impressions
  • F is the average frequency

To calculate the unique reach, divide the total number of impressions by the average frequency at which an individual is exposed to the advertisement.

What is Unique Reach?

Unique reach is a metric used in advertising to estimate the number of distinct individuals who have seen an advertisement at least once during a given campaign period. It helps advertisers understand the breadth of their message’s reach, as opposed to the total number of impressions, which can include multiple views by the same individuals.

How to Calculate Unique Reach?

The following steps outline how to calculate the Unique Reach.


  1. First, determine the total number of impressions (I).
  2. Next, determine the average frequency (F) at which an individual is exposed to the advertisement.
  3. Use the formula from above = UR = I / F.
  4. Finally, calculate the Unique Reach (UR).
  5. After inserting the variables and calculating the result, check your answer with the calculator above.

Example Problem:

Use the following variables as an example problem to test your knowledge.

Total number of impressions (I) = 5000

Average frequency (F) = 2.5