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Reach, Frequency, Ratings, GRPs, Impressions, CPP, and CPM in AdvertisingWhat are GRPs, Ratings, Reach, Frequency, and Impressions in advertising? How are they calculated? And how do they relate to each other? When creating a media plan, it’s important to have a firm grasp of these often misunderstood advertising terms, even if they are built into your media planning software. This article aims to give you clear, concise definitions and examples of important advertising terminology: Media Market, Population, Rating, Reach, Frequency, Gross Rating Points (GRPs), Impressions, Cost per Point (CPP), and Cost per Thousand Impressions (CPM). Media CostMedia Cost is the price you pay to present your advertisement. There are many different ways to price media including points, impressions, clicks, leads, actions, days, weeks, months, etc. However, it ultimately boils down to the amount you pay to present your advertisement, which is Media Cost. Media Cost excludes the cost to create the advertisement and other costs. Media MarketMedia Market or Market describes the set of people that could potentially be exposed to your advertisement. The media market is often described using Designated Market Areas or DMAs, which are trademarked by Nielsen. However, Media Market can be any market you define. More on Media Markets… PopulationPopulation is the total number of people in your Media Market. RatingRating is the percentage (0 to 100) of the Media Market that will likely be exposed to your advertisement. Rating is an estimate based on past performance often sourced from surveys. More on Ratings… Average PersonsAverage Persons is the number of people that, on average, will be exposed to each Spot. Average Persons is calculated by multiplying Population by Rating then dividing by 100. SpotA Spot is a single broadcast of an advertisement. Typically, an advertising placement includes multiple spots. Gross Rating Points (GRPs)Gross Rating Point (GRP) is a measure of the size of an advertising campaign by a specific medium or schedule. GRP is calculated by multiplying the number of Spots by Rating. For more, see How to Calculate GRPs – Gross Rating Points. Cost per Point (CPP)Cost per Point (CPP) is a measure of cost efficiency which enables you to compare the cost of this advertisement to other advertisements. CPP is calculated as Media Cost divided by Gross Rating Points (GRPs). For more, see How to Calculate Cost Per Point (CPP). ImpressionsImpressions are the total number of exposures to your advertisement. One person can receive multiple exposures over time. If one person was exposed to an advertisement five times, this would count as five impressions. Impressions are calculated by multiplying the number of Spots by Average Persons. Cost per Thousand Impressions (CPM)Cost per Thousand Impressions (CPM) is another measure of cost efficiency which enables you to compare the cost of this ad to other advertisements. CPM is calculated as the Media Cost divided by Impressions divided by 1,000. ReachReach is the number of people in the Media Market that will likely be exposed to one Spot. Estimating reach is tricky because when you run an ad multiple times, the same person may see the ad more than once but you only want to count them once in Reach. There are many different methods to estimate reach. Most rely on software, such as Bionic’s Media Planning Software, to calculate reach. More on Reach… Reach PercentageReach can also be expressed as a percentage, which indicates the percentage of the Population that is exposed to at least one Spot. FrequencyFrequency is the average number of times the advertisement will be presented to the Reached Population. One way to calculate frequency is to divide the number of Impressions by the Reach. Another way is to divide GRPs by Reach Percentage. Example – Broadcasting 5 Radio Spots in ChattanoogaHere’s an example of all of the above advertising terms in action. In this example, we’re broadcasting 5 radio spots at a cost of $500 each to the Chattanooga market.
Related PostsWhat refers to the number of times within a specified period that the target audience is exposed to the advertising message?Reach is the number of viewers within a set period of time that are potentially exposed to your marketing effort or ad campaign.
What is the number of times an individual is exposed to an ad?In advertising, the effective frequency is the number of times a person must be exposed to an advertising message before a response is made and before exposure is considered wasteful. The subject on effective frequency is quite controversial. Many people have their own definition on what this phrase means.
What is a average frequency in marketing?Average frequency reports the average number of times a person is exposed to an advertising schedule. It is a basic measure of schedule intensity. Average refers to an observation, taken from survey and is calculated by dividing an advertising schedule's gross impressions by its unduplicated reach.
Is defined as the number of different people or households exposed to an advertisement?The AMA defines reach as “the number of different persons or households exposed to a particular advertising media vehicle or a media schedule during a specified period of time. It is also called cumulative audience, cumulative reach, net audience, net reach, net unduplicated audience, or unduplicated audience.
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What refers to number of time within a specific time period that an average person or household is exposed to the ad message?
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