THE COST OF YOUR NEXT ISSUE
Will your newsletter
cover its costs?
Model paid subscribers, churn and the time it takes to publish. Start with an example, then enter your assumptions.
Your assumptions
Use one currency throughout. Monthly billing assumed.
12-month contribution
After entered fees, platform costs and publishing labor.
| Month | New paid | Churned | Total paid | Net contribution |
|---|
Scenario, not a forecast. Fractional subscribers are modeled averages. Refunds, taxes and omitted costs are excluded; add an allowance to your inputs. Examples are not current vendor prices.
YOUR NEXT EXPERIMENT
Validate the paid offer with your audience.
Check willingness to pay before investing more publishing time. Kit is one option for newsletter tools; compare its current plan and fees with what you entered here.
Independent calculator. Standard link, no commission. No purchase required.
Method and privacy
Month 1 paying subscribers = audience × paid percentage. Following months retain the prior paid cohort after churn, then add new free subscribers × paid percentage. Month 1 includes only the starting audience. New free cohorts enter from month 2. Conversion happens once per cohort; nonconverters never convert later in this model. New paid subscribers first face churn the following month. Each paying subscriber makes one monthly payment. Net contribution subtracts payment fees and monthly platform plus publishing labor costs.
Inputs stay in your browser. Sharing deliberately includes them in the URL fragment. Anonymous interaction events store only a date, event kind, channel label, random event ID and test flag. No input values, email or IP address are stored in our event table. The hosting provider may maintain operational logs. Browser tracking preferences are respected. Counts do not establish unique people or purchases.