GRP Calculator
Calculate your gross rating point (GRP).
01 / YOUR INPUTS
02 / YOUR RESULT
Ready when you are
Enter your details and calculate to see your results.Reach Percentage:
Gross Rating Point:
How it works & examples
What are gross rating points (GRP)?
GRP combines audience reach with average exposure frequency to describe the weight of an advertising campaign.
How to use this tool
Reach (%) = audience reached ÷ total audience × 100. GRP = reach (%) × frequency per viewer. Use a consistent audience definition and the average frequency among the people reached.
Example
Reaching 40,000 of a 100,000-person audience at an average frequency of three gives 40% reach and 120 GRP.
Understanding your result
GRP can exceed 100 because it counts repeated exposure. It is not the percentage of unique people reached and does not establish whether those exposures were effective.
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