What is a Target Rating Point (TRP)?
A TRP is one percent of a defined target audience exposed to an ad once. If a brand's target is women aged 25 to 44, and a commercial airs in a program watched by ten percent of them, that airing delivers ten TRPs. Air it five times to the same ten percent and the schedule has delivered fifty TRPs, even though only ten percent of the audience ever saw it. TRPs are reach multiplied by frequency, and that multiplication is both their usefulness and their trap.
The measure descends from the Gross Rating Point, which counts the whole population. A TRP narrows the lens to the people the brand actually wants. Media planners talk in TRPs when they set a campaign's weight, buyers negotiate in them, and the post-campaign report compares the TRPs promised against the TRPs delivered. The same logic now runs across streaming and connected TV, where the audience is measured differently but the arithmetic is unchanged.
Why it matters
Why TRP matters
It is the number that turns a media budget into a plan. A brand launching a product might decide the campaign needs 300 TRPs a week for four weeks against its target; the planner then works out which programs, dayparts and channels deliver that most efficiently, and the cost per point becomes the measure of whether the buy was good. Without a common unit, two channels with different audiences and prices cannot be compared.
It also keeps a campaign honest about who it is for. A show with a huge general audience may deliver a mountain of gross points and very few target points, which means the brand paid to reach people who will never buy. Planning in TRPs forces the question of whether the audience in the room is the audience on the brief.
In practice
How TRP works in practice
- 01
The planner starts with the target definition, which has to match something the ratings provider can measure, then sets the weight the campaign needs. That depends on the job: a launch needs more frequency than a reminder, a new message more than a familiar one. From the weight, the planner builds a schedule of placements and estimates the TRPs each will deliver using audience data, then the buyer negotiates the cost. During the flight, delivery is tracked against the estimate and under-delivery is made good with extra airings.
- 02
For the creative team, TRPs tell you how hard the film has to work. A schedule with low frequency means the spot gets one chance to land and needs to be clear from the first second. A schedule with high frequency means the same audience will see it ten times, so it needs to survive repetition: a joke that is funny once and a layer that rewards the fifth viewing. The numbers belong to the media planner, but they should shape the edit.
- 03
The measure has also moved into the streaming era. Connected TV platforms sell impressions rather than ratings, so planners convert those impressions back into target points to compare a streaming buy with a broadcast one on the same page. The conversion is an estimate, because the audience is measured by different methods, but it keeps the planning language consistent. A brand that runs a thirty-second spot on both linear TV and a streaming service can still set one weight for the campaign and judge both halves against it.
- 04
When the flight ends, the post-buy analysis is the check. It compares the points delivered against those promised by program and daypart, and it measures spill: points delivered to people outside the target definition, counted in the total but never wanted. It also reads the reach and frequency curve, showing how much of the target was reached at the frequency the plan judged effective, which says more than the raw point total. The report becomes the evidence in the next negotiation.
Watch out
What people get wrong about TRPs
Reading TRPs as reach. One hundred TRPs could mean the whole target saw the ad once or a quarter of them saw it four times; the plan has to say which, and the two outcomes are very different campaigns. The other mistake is chasing points instead of people. A cheap cost per point is only cheap if the people counted were the right ones, and a plan optimized purely for TRP efficiency drifts toward whatever audience is cheapest to buy.
A third mistake is treating TRPs as a measure of effect. They measure exposure, not attention and not persuasion. A brilliant schedule behind a forgettable film delivers every point it promised and moves nothing.
