Why most newsletters underperform
List size is vanity. The real metric is the product of list × paid conversion × retention. A 5,000-subscriber list with 5% paid conversion and 2% churn beats a 50,000-subscriber list with 0.5% conversion and 10% churn, every time.
- • Most paid newsletters convert 1–5% of free subs.
- • Annual plans crush monthly churn.
- • Beehiiv's 0% fee tier matters at scale; Substack is fine for fast starts.
Pricing tactics
Higher prices usually mean lower churn — paid subscribers self-select for engagement. Test $10–$15/mo before defaulting to the $5 floor.
Newsletter revenue is brutally simple math: subscribers × conversion to paid × annual price × (1 − churn) + sponsorship CPM × sends. This calculator runs both monetization paths so you can see whether subs or sponsors are your better lane.
What each input means
Get these inputs right and the output is reliable. Get them wrong and the calculator just multiplies bad assumptions.
Total subscribers
Free + paid combined.
Typical range: 1k–10k early; 25k–100k established; 250k+ top 1%.
Paid conversion %
% of total subscribers on a paid plan.
Typical range: 2–5% is normal; 7–10% is great; 12%+ is rare/exceptional.
Annual price
Yearly subscription price (Substack default $50–$80).
Typical range: $50, $80, $100 most common tiers.
Annual churn %
% of paid subscribers that don't renew each year.
Typical range: 30–50% annual is normal for newsletters; <25% is excellent.
Sponsor CPM
What sponsors pay per 1,000 sends/opens.
Typical range: $25–80 niche newsletters; $80–200 high-quality B2B.
Worked examples
Real scenarios with the math walked through line by line.
Niche B2B newsletter, 8k subs
Scenario: 8,000 total subs, 4% paid conversion, $80/yr, 35% churn, $60 CPM, 4 sponsored sends/mo.
Math: Paid = 320 × $80 × 0.65 = $16,640/yr. Sponsorship = 8,000/1000 × $60 × 4 × 12 = $23,040/yr.
Outcome: $39,680/yr total. Sponsors > subs at this scale — common at 5–25k subs.
Creator economy newsletter, 50k subs
Scenario: 50k subs, 6% paid, $96/yr, 28% churn, $75 CPM, 2 sponsors/mo.
Math: Paid = 3,000 × $96 × 0.72 = $207,360/yr. Sponsorship = 50/1 × $75 × 2 × 12 = $90,000/yr.
Outcome: $297k/yr. Subs dominate at scale. Push sponsorship CPM to $120 for B2B audience.
Common mistakes
Where this calculation usually goes wrong in the real world.
- Assuming free-to-paid conversion stays constant as you scale — it usually drops below 5%.
- Not accounting for annual churn — newsletter churn is meaningfully higher than SaaS.
- Pricing sponsors off CPM without quality multiplier. Niche professional audiences command 3–5x generic CPM.
- Counting Substack/ConvertKit fees in revenue. Net of platform fee is what matters (Substack takes 10%, Stripe ~3%).
When to use this calculator
- Forecasting newsletter revenue for the next 12 months.
- Deciding whether to focus on subs growth, sponsors, or both.
- Pricing your annual subscription tier.
- Modeling the impact of a paywall or premium tier launch.
Glossary
Free-to-paid conversion
% of total subs on a paid plan. The single most important newsletter metric.
CPM
Cost per mille (thousand). Sponsor pricing standard. $50 CPM × 10k sends = $500 per send.
Annual churn
% of paid subscribers who don't renew yearly. Newsletter rates typically 30–50%.
List quality multiplier
Premium audiences (executives, specialists) command 3–5x generic CPM.
More questions answered
Sponsorships or subscriptions for newsletters?
Below 25k subs, sponsorships usually pay more. Above 25k with a high-conversion niche, subscriptions often dominate. The real answer: do both — they have different revenue profiles and reduce concentration risk.
What's a good paid conversion rate?
2–5% is industry average. 7–10% is excellent and usually requires either premium content gating or a very specific professional audience. Below 2% suggests the free content already gives away too much value.
How much does Substack take?
10% of subscription revenue + Stripe fees (~3%). Realistic net is ~87% of gross subscription revenue. Beehiiv and Ghost are cheaper at scale but require more setup.
Related guides
Long-form playbooks on the same topic, written by the RevenueLab editorial team.
Newsletter Monetization in 2026: Paid Subs vs Sponsorships vs Both
How paid newsletters actually pencil — conversion rates from free to paid, churn assumptions, and when sponsorship-led models out-earn subscription-led ones.
Read the guideYouTube Shorts Monetization in 2026: How the Ad-Revenue Pool Actually Works
How the Shorts revenue-share pool is calculated, what RPMs creators are actually seeing, and where Shorts fit alongside long-form for serious channel revenue.
Read the guideYouTube RPM by Niche in 2026: What Creators Actually Earn per 1,000 Views
A breakdown of typical YouTube RPM ranges across 12 niches — from finance and B2B SaaS at the top to gaming and entertainment at the bottom — and the levers that move them.
Read the guideMethodology last reviewed: 2025-11 by the RevenueLab editorial team.
FAQ
What's a typical newsletter conversion rate?
Free-to-paid conversion sits between 1% and 5% for most independent creators. Niche professional newsletters (finance, tech) can exceed 8%.
Substack vs Beehiiv for revenue?
Substack takes 10% but ships features fast and helps with discovery. Beehiiv has lower fees and more growth tooling. Run the same model on both with different platformFee values.
Should I sell annual plans?
Yes. Annual subscribers churn at roughly half the rate of monthly subs and bank cash up front.