LetterROI
Estimate newsletter revenue streams.
Model a directional monthly revenue range from advertising, sponsorships, and paid subscriptions.
- Inputs
- List size, open rate, sends, niche, paid price
- Output
- Monthly revenue range by stream
Newsletter calculators
Precise utilities for bounded questions
Free, focused tools for planning newsletter revenue, pricing, subscriber goals, sales materials, and sponsorship capacity. Every calculation runs in your browser.
Newsletter economics
Revenue and pricing
SponsorQuote
Build a directional rate card.
Translate audience reach, niche, and placement into a practical sponsorship price range.
- Inputs
- List size, open rate, niche CPM, placement
- Output
- Flat rate, implied CPM, rate-card band
SubTarget
Work backward from a revenue goal.
Estimate how many paying subscribers a monthly target requires after pricing, fees, and optional churn assumptions.
- Inputs
- Revenue target, price, fees, plan mix, churn
- Output
- Subscriber goal, range, replacements needed
Newsletter workflow
Sales operations
Media Kit Composer
Turn audience data into a one-page kit.
Compose a print-ready summary of your publication, audience, placements, and sponsorship pricing.
- Inputs
- Publication details, audience stats, rates, placements
- Output
- Print-ready media kit and copyable rates
Inventory Planner
Model sponsorship capacity over time.
Plan available slots, expected fill, exclusivity, and booked revenue across a practical sales horizon.
- Inputs
- Cadence, slots, fill, rates, exclusivity, horizon
- Output
- Capacity, booked revenue, open inventory