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How this calculator works
Cost per send = (CPM ÷ 1000) × subscribers. Monthly revenue = cost per send × sends per month.
Useful scenarios
- A 5,000-subscriber tech newsletter at 45% open rate pricing a weekly sponsorship slot using $15 CPM.
- A 20,000-subscriber finance newsletter with 50% open rate comparing solo ad rates vs. embedded sponsorships.
- A small creator checking whether their 2,000-subscriber list at 35% open rate can generate meaningful sponsorship income.
FAQ
What is a good CPM for newsletter sponsorships?
It varies by niche. General/lifestyle: $5–$10 CPM. Tech/SaaS: $10–$20 CPM. Business/Finance: $15–$30 CPM. Niche B2B: $20–$40+ CPM. A dedicated solo ad can command 2–5× the standard CPM.
How does open rate affect sponsorship pricing?
Open rate directly affects effective reach. A 5,000-subscriber list at 45% open rate delivers ~2,250 actual reads. Some sponsors look at opens rather than total subscribers when evaluating a newsletter.
How many sponsorships per month is too many?
1–4 sponsored sends per month is typical. More than 4 per month risks subscriber fatigue and lower open rates. Many successful newsletters alternate sponsored issues with regular content.