Reach & Frequency Calculator
Calculate unique audience reach, average exposure frequency, Gross Rating Points (GRPs), and audience penetration percentage for digital and broadcast…
How to Use the Reach & Frequency Calculator
- 1 Enter your Target Audience Universe Size (total addressable users in GEO or segment).
- 2 Input Total Planned Impressions booked across the advertising flight.
- 3 Toggle calculation mode: Solve for Average Frequency or Solve for Unique Reach.
- 4 Review output Gross Rating Points (GRPs), audience penetration percentage, and exposure benchmarks.
Methodology & Algorithmic Standards
Implements standard media planning formulas: Reach % = min(100, (Unique Reach / Universe Size) * 100), Average Frequency = Total Impressions / Unique Reach, and GRPs = Reach % * Average Frequency with zero-division protection.
Frequently Asked Questions
What is a good target frequency for digital ad campaigns? ▼
Most brand and performance advertisers target between 2.0x and 4.0x average frequency across a 30-day flight to establish message recall without inducing ad fatigue.
How are Gross Rating Points (GRPs) calculated? ▼
GRPs equal Reach Percentage multiplied by Average Frequency (e.g., 60% reach at 3.0x frequency equals 180 GRPs).
Can unique reach exceed total universe size? ▼
No. The calculator caps unique audience reach at 100% of the defined universe size.
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