Calculator
Campaign Performance Graph
This chart compares spend, points, and CPRP for the current scenario.
Example Data Table
| Campaign | Net Spend | Rating Points | CPRP | Estimated Impressions | Effective CPM |
|---|---|---|---|---|---|
| Morning News Burst | 92000 | 140 | 657.14 | 1120000 | 82.14 |
| Prime Time Push | 164350 | 185 | 888.38 | 1757500 | 93.51 |
| Weekend Sports Mix | 121500 | 168 | 723.21 | 1490000 | 81.54 |
Formula Used
Primary formula: Cost per Rating Point = Net Campaign Spend ÷ Rating Points
Derived points formula: Rating Points = Reach % × Average Frequency
Estimated impressions: Impressions = (Rating Points ÷ 100) × Audience Size
Effective CPM: Effective CPM = (Net Spend ÷ Estimated Impressions) × 1000
This calculator supports direct rating points or points derived from reach and frequency. It can also include production, agency, and other costs before applying discount adjustments.
How to Use This Calculator
- Enter your campaign name and choose the spend basis.
- Add media cost and any extra campaign costs.
- Enter a discount percent if negotiated savings apply.
- Select GRP or TRP as your point type.
- Choose direct points or derive points from reach and frequency.
- Optionally add audience size, impressions, conversions, and revenue.
- Press Calculate CPRP to show results above the form.
- Use the CSV or PDF buttons to export findings.
FAQs
1) What does cost per rating point measure?
It measures how much you spend for each rating point delivered. Lower CPRP usually suggests better buying efficiency, though audience quality and conversion value still matter.
2) Should I use GRP or TRP?
Use GRP when evaluating broad audience delivery. Use TRP when campaign performance matters within a defined target segment, such as parents, sports fans, or local adults.
3) Why include production and agency fees?
Including those costs gives a fuller campaign-efficiency view. Excluding them is useful when you only want pure media buying efficiency for placement comparisons.
4) How are rating points derived from reach and frequency?
Rating points equal reach percent multiplied by average frequency. A campaign reaching 50 percent of viewers with frequency 3 delivers 150 rating points.
5) Is lower CPRP always better?
Not always. A lower CPRP may come from cheaper inventory with weaker audience quality. Review conversions, revenue, context, and brand goals before judging efficiency.
6) What if I do not know audience size?
You can still calculate CPRP using direct rating points. If audience size is missing, add fallback impressions to estimate CPM and compare scenario efficiency.
7) Can this tool compare different campaign scenarios?
Yes. Re-enter different cost levels, discounts, and points to test how CPRP changes. This helps when reviewing media plans, negotiations, or revised forecasts.
8) When is CPRP most useful?
CPRP is most useful during planning, channel comparison, vendor negotiation, and post-campaign review. It provides a simple efficiency metric for rating-based media.