1. What is Gross Rating Points (GRP)?

Gross Rating Points (GRP) is a standard measure in advertising that represents the total exposure of an advertising campaign. It combines the percentage of the target audience reached (Reach %) with the average frequency of exposure.

2. How Does the Calculator Work?

The calculator uses the GRP formula:

Where:

• \( Reach \% \) — Percentage of target audience reached (0-100%)
• \( Frequency \) — Average number of times the audience is exposed to the ad

Explanation: GRP measures the total volume of delivery for an advertising campaign. A campaign with 80% reach and 5 frequency would have 400 GRPs.

3. Importance of GRP Calculation

Details: GRP helps advertisers understand the overall impact of their campaigns, compare different media plans, and allocate budgets effectively across different media channels.

4. Using the Calculator

Tips: Enter reach as a percentage (0-100) and frequency as a positive number. Both values must be valid (reach between 0-100, frequency ≥ 0).

5. Frequently Asked Questions (FAQ)

Q1: What is a good GRP value?
A: It varies by market and campaign goals. Typically, 100-300 GRPs per week are needed for effective reach in most consumer campaigns.

Q2: How does GRP differ from TRP?
A: GRP measures total audience, while TRP (Target Rating Points) measures only the specific target audience.

Q3: Can GRP exceed 100?
A: Yes, since it's reach multiplied by frequency. A GRP of 200 could mean 100% reach with 2 frequency or 50% reach with 4 frequency.

Q4: What are limitations of GRP?
A: GRP doesn't account for ad quality, viewer attention, or the impact of different media channels.

Q5: How is GRP used in media planning?
A: Media planners use GRP to compare the relative strength of different media schedules and allocate budgets across channels.