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How this calculator works
The calculator first determines your effective ad slots by multiplying the total number of ad slots per episode by the fill rate, which represents the percentage of available slots that actually sell. Monthly ad revenue is then computed by taking downloads per episode divided by 1,000, multiplying by your niche CPM rate, then by effective ad slots, and finally by episodes per month. Membership income from platforms like Patreon or Apple Podcasts Subscriptions is added as a separate revenue stream. The total monthly revenue combines ad income and membership income for a complete picture of podcast monetization.
Useful scenarios
- A new podcaster estimating whether sponsorships can cover production costs.
- A growing show projecting annual sponsorship revenue at current CPM rates.
- A niche podcast comparing CPM differences between tech and general interest categories.
FAQ
What is a typical podcast CPM?
Podcast CPMs range from $18–$50 depending on niche, audience size, and ad placement. Tech and finance shows often see $35–$50, while general interest shows average $18–$25. Mid-roll ads command 20%–30% higher CPMs than pre-roll.
How many ad slots per episode?
Most podcasts run 1–3 ad slots per episode: pre-roll (before content), mid-roll (during), and post-roll (after). Pre-roll and post-roll have lower CPMs; mid-roll has the highest.
What is a realistic fill rate?
Fill rate is the percentage of available ad slots that actually sell. Established podcasts with 5,000+ downloads per episode can expect 70%–90% fill rates. Newer shows may see 30%–50%. Direct sales to sponsors can improve fill rate.