I spent six months trying to untangle why my broadcast TV buys seemed to cost three times more than someone else's identical campaign. Then I learned about CPP, and suddenly everything made sense. Cost per point isn't just another metric—it's the only fair way to compare media efficiency across completely different channels.
What Is Cost Per Point?
Cost per point (CPP) measures the cost to reach 1% of your target audience in a specific market or across a media channel. It's calculated by dividing the total cost of a media buy by the number of rating points delivered. Rating points represent reach; one point equals 1% of the target demographic in that market.
CPP = Total Media Cost ÷ Rating Points
A $50,000 TV buy in Denver that delivers 20 rating points costs $2,500 CPP. That same $50,000 on a podcast network delivering 5 rating points costs $10,000 CPP. The metric instantly reveals which channel gives you more efficient reach.
CPP originated in broadcast media—TV and radio have measured audiences in points for decades. But the framework applies across modern channels too. Programmatic advertising platforms now calculate CPP to compare display ads against video campaigns.
How to Calculate CPP Across Media Types
Each medium measures rating points differently:
- Local TV: $45,000 for 15 rating points = $3,000 CPP
- Radio: $18,000 for 8 rating points = $2,250 CPP
- Outdoor (billboards): $12,000 for 6 rating points = $2,000 CPP
The outdoor buy is cheapest on CPP, but it delivers lower frequency. CPP tells you efficiency; frequency tells you repetition power. Use both metrics together.
Real-World Examples
Company | Medium | Buy Cost | Rating Points | CPP | Notes |
Subaru | Local TV (Denver) | $85,000 | 28 pts | $3,036 | Multi-week flight; 6am-11pm dayparts |
Gatorade | Broadcast radio (national) | $120,000 | 32 pts | $3,750 | Drive-time emphasis |
Whole Foods | Digital billboards (Bay Area) | $42,000 | 22 pts | $1,909 | Four-week rotation |
Peloton | Connected TV (CTV) | $95,000 | 18 pts | $5,278 | Premium placement; brand-safe |
Southwest Airlines | Programmatic video | $200,000 | 35 pts | $5,714 | Viewability standards included |
Common CPP Mistakes
1. Treating CPP as a quality metric. The cheapest CPP often signals remnant inventory or audiences nobody else wants. Cheap CPP + wrong audience = money in a hole.
2. Forgetting frequency. A 10 rating point buy means only 10% of your target saw your ad once. If you need three exposures for brand recall, you need 30 rating points.
3. Comparing CPP across unrelated markets. A $3,500 CPP in New York isn't comparable to $2,000 CPP in Kansas City. Market size, competition, and media supply differ dramatically.
4. Ignoring viewability and brand safety. A low CPP programmatic deal might come with 45% viewability. A higher CPP connected TV placement guarantees 100% viewability.
How CPP Connects to Related Concepts
Cost Per Thousand (CPM) measures cost per 1,000 impressions; CPP measures cost per 1% of an audience. CPM is better for digital; CPP is better for broadcast.
Cost per acquisition (CPA) measures cost per actual customer. CPP measures media efficiency. You can have excellent CPP and terrible CPA if targeting is wrong.
Media mix modeling uses CPP data to optimize budget allocation across channels.
Gross Rating Point (GRP) is the total rating points in a campaign. CPP is the cost per each one of those points.
Frequently Asked Questions
Q: Should I always choose the lowest CPP?
A: No. Lowest CPP often means worst quality. Choose CPP based on audience match, brand safety, and frequency targets first.
Q: How does CPP differ from CPM?
A: CPM is impressions-based (digital). CPP is demographic rating points-based (broadcast). Different measurements for different media.
Q: What's a "good" CPP?
A: Depends on market, medium, and target audience. Benchmark against your own historical data and direct competitors.
Q: How do I account for frequency when calculating CPP?
A: Calculate your frequency target first (usually 3-7 exposures). Multiply audience reach by frequency for total rating points needed.
Q: Does CPP include audience overlap across channels?
A: No. CPP measures individual media efficiency. Use media mix modeling to account for overlap.
Q: What happens to CPP during peak seasons?
A: CPP increases dramatically. Inventory becomes scarce and demand rises. Plan buys during shoulder seasons.
Sources & References
- Nielsen Media Research. "Understanding TV Ratings and Market Dynamics." Nielsen Audience Insights, 2025.
- Interactive Advertising Bureau (IAB). "Media Rating Council Standards for Digital Video." 2025.
- Television Bureau of Advertising. "CPP Benchmarking Guide." TVB.org, 2025.
- Zenith Media. "Global Media Trends 2026: Cost Efficiency in Programmatic Buying." 2026.
- American Advertising Federation. "Media Buying Best Practices." AAF Resource Center, 2025.
Written by Conan Pesci · April 6, 2026