GRP (Gross Rating Points) Calculator

Understanding Gross Rating Points (GRP)

Gross Rating Points (GRP) is a standard metric in advertising that measures the scale of an advertising campaign by combining reach and frequency. It helps media planners understand the total weight of a campaign across specific audiences.

GRP Formula

The GRP calculation is simple but powerful:

Where:

• Reach is the percentage of your target audience exposed to your ad at least once
• Frequency is the average number of times your ad is seen by the reached audience

Why GRP Matters

GRP helps advertisers:

• Compare campaigns across different media channels
• Measure intensity of advertising pressure
• Budget effectively by understanding the relationship between spend and impact
• Optimize media plans by balancing reach and frequency

Industry Benchmarks

Campaign Type	Typical GRP Range
Brand Awareness	100-300 GRP per week
Product Launch	200-500 GRP first month
Seasonal Promotion	150-400 GRP during peak
Maintenance	50-100 GRP per week

Limitations of GRP

While GRP is a valuable metric, it has some limitations:

• Doesn’t measure ad quality or creative effectiveness
• Doesn’t account for audience engagement
• Can be inflated by excessive frequency without meaningful reach
• Varies in effectiveness across different media channels