Calculate the return on your newsletter investment — factoring in platform costs, time spent writing, and revenue from sponsorships, paid subscriptions, or affiliate income.
Quick answer: This newsletter roi calculator helps creators estimate the practical impact, savings potential, or first-year return behind a software decision before pricing pages and marketing claims frame the business case for them.
Use it to pressure-test assumptions, compare scenarios, and build a more grounded case before your decision drifts into abstract marketing claims.
Live calculator
Example scenario
A weekly newsletter with 5,000 subscribers generating $800/month from sponsors and $200/month from affiliate links. Each issue takes about 3 hours to produce.
Newsletters are one of the most profitable creator channels — but only if the math works. Platform costs scale with your subscriber count, and writing time is real labor.
This calculator shows whether your newsletter is profitable after accounting for the platform fee, your time, and actual revenue generated.
Use this when deciding whether to start a paid newsletter, comparing newsletter platforms at your subscriber count, or evaluating whether your current newsletter justifies the time you invest.
Monthly costs = platform cost + (issues per month x hours per issue x hourly rate)
Monthly revenue = sponsorship revenue + paid subscriber revenue + affiliate revenue
Monthly profit = revenue - costs
Revenue per subscriber = monthly revenue / total subscribers
Annual ROI = ((annual revenue - annual costs) / annual costs) x 100
The inputs stay intentionally practical so creators can use the calculator early in the decision process and refine the assumptions later if needed.
Your current email subscriber count.
Default starting value: 5000
Monthly cost of your newsletter platform (ConvertKit, Beehiiv, Substack, etc.).
Default starting value: 49 $
How many newsletter editions you send per month.
Default starting value: 4
Time spent writing, editing, and sending each issue.
Default starting value: 3 hrs
What your writing time is worth per hour.
Default starting value: 50 $
Revenue from newsletter sponsors and ad placements.
Default starting value: 800 $
Revenue from paid newsletter subscriptions (if applicable).
Default starting value: 0 $
Revenue from affiliate links in your newsletter.
Default starting value: 200 $
Use these next if you want to pressure-test adjacent parts of the business case instead of relying on one number alone.
Add up what your full creator tool stack actually costs per month and year. Find out how much of your revenue goes to software subscriptions.
Estimate revenue from an online course launch based on audience size, conversion rates, and pricing. Factor in platform fees and production costs.
Yes. Free subscribers contribute to sponsorship CPM rates and can convert to paid subscribers or purchase products you promote. They have indirect value.
Most monetized newsletters earn $0.10-0.50 per subscriber per month. Niche newsletters with engaged audiences can earn $1+ per subscriber.
