The total number of impressions delivered by a media schedule expressed as a percentage of a market population. In outdoor a GRP level is sometimes referred to as a showing, and is measured on a daily basis.

The sum of the average quarter-hour ratings for all the commercial positions in a program (or series of availabilities); used to estimate the number of ratings points delivered by an advertising "buy."

3/4– A unit of measurement of audience size. It is used to measure the exposure to one or more programs or commercials, without regard to multiple exposures of the same advertising to individuals. One GRP = 1% of TV households.

the product of reach time frequency in a media schedule

A measure used for the total gross weight delivered by a vehicle. It is the sum of the ratings for all of the individual announcements or programmes. It is also calculated as gross impressions divided by the population base times 100. GRPs are duplicated ratings. Also, reach x frequency = GRPs.

GRP's represent the number of impression opportunities (without regard to audience duplication) expressed as a percent of the population of a specific market normally quoted on a daily basis.

The total ratings of various ads or media. Reach x Frequency = GRP.

A method for measuring an audience with duplicated circulation over a period of time. GRP levels for out of home media refer to daily circulation expressed over a week. One rating point represents the circulation equal to 1% of a market population. Common to all media.

GRP (short for Gross Rating Point) is the sum of ratings achieved by a specific media vehicle or schedule. It represents the percentage of the target audience reached by an advertisement. If the advertisement appears more than once, the GRP figure represents the sum of each individual GRP.