Rex says
Money math without the spreadsheet headache. Plug in your numbers and I'll show you exactly where the dollars land.
Try a scenario
Click to load — tweak from there.Inputs
Result
Monthly revenue
$15,107
Sponsorship revenue
$5,107
Paid subscription revenue
$10,000
Paying subscribers
1,000
Revenue per subscriber per year
$4.53
Annual revenue
$181,286
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One click, a permanent link with your numbers baked in.
How to use this
- 1Enter list size.
- 2Enter open rate (%).
- 3Enter sponsored sends per month.
- 4Enter sponsor cpm on opens ($).
- 5Enter paid conversion rate (%).
- 6Enter paid price per month ($).
- 7Read your monthly revenue on the right — it updates as you type.
- 8Hit Share to keep the scenario or send it to someone.
About this calculator
Newsletter economics come down to RPM on the ad side and conversion rate on the paid side. Revenue per subscriber per year is the metric buyers and sponsors both underwrite.
Worked example
Using the values the calculator loads with:
Inputs
- List size: 40000
- Open rate: 42 %
- Sponsored sends per month: 8
- Sponsor CPM on opens: 38 $
- Paid conversion rate: 2.5 %
- Paid price per month: 10 $
Results
- Monthly revenue: $15,107.20
- Sponsorship revenue: $5,107.20
- Paid subscription revenue: $10,000.00
- Paying subscribers: 1,000
- Revenue per subscriber per year: $4.53
- Annual revenue: $181,286.40
What each field means
Inputs
- List size
- The list size used in the calculation. Starts at 40000 so you have a working example on load.
- Open rate (%)
- The open rate used in the calculation, measured in %. Starts at 42 % so you have a working example on load. Accepted range: 0–100 %.
- Sponsored sends per month
- The sponsored sends per month used in the calculation. Starts at 8 so you have a working example on load.
- Sponsor CPM on opens ($)
- The sponsor cpm on opens used in the calculation, measured in $. Starts at 38 $ so you have a working example on load.
- Paid conversion rate (%)
- The paid conversion rate used in the calculation, measured in %. Starts at 2.5 % so you have a working example on load. Accepted range: 0–100 %.
- Paid price per month ($)
- The paid price per month used in the calculation, measured in $. Starts at 10 $ so you have a working example on load.
Results
- Monthly revenue
- Returned as a money amount in US dollars and shown as the headline result. It recalculates instantly whenever you change an input, so you can compare scenarios without reloading.
- Sponsorship revenue
- Returned as a money amount in US dollars. It recalculates instantly whenever you change an input, so you can compare scenarios without reloading.
- Paid subscription revenue
- Returned as a money amount in US dollars. It recalculates instantly whenever you change an input, so you can compare scenarios without reloading.
- Paying subscribers
- Returned as a whole number. It recalculates instantly whenever you change an input, so you can compare scenarios without reloading.
- Revenue per subscriber per year
- Returned as a money amount in US dollars. It recalculates instantly whenever you change an input, so you can compare scenarios without reloading.
- Annual revenue
- Returned as a money amount in US dollars. It recalculates instantly whenever you change an input, so you can compare scenarios without reloading.
FAQ
How does the newsletter revenue calculator work?
Newsletter economics come down to RPM on the ad side and conversion rate on the paid side. Revenue per subscriber per year is the metric buyers and sponsors both underwrite. The underlying maths is: Ad revenue = Opens ÷ 1,000 × CPM × sends; sub revenue = List × conversion × price.
What do I need to enter?
6 values: list size, open rate, sponsored sends per month, sponsor cpm on opens, paid conversion rate, and paid price per month. Each field starts with a sensible default, so you can change one number at a time and watch the result move.
What does the monthly revenue result mean?
It is returned as a money amount in US dollars and updates live as you edit the inputs, so you can compare two or three versions of a scenario in a few seconds.
Is this calculator free, and do I need an account?
Yes, it's free, and no account is required. Nothing you type is stored on our servers — the maths runs entirely in your browser.
How accurate is the result?
It applies the standard formula exactly, so the arithmetic is precise. Results are estimates before tax, fees, and inflation unless an input explicitly covers them.
Who is this tool for?
It's built for anyone comparing money scenarios before committing — budgeting a payment, sanity-checking a quote, or seeing what a change in rate or term actually costs.
Accuracy and limitations
- Results are estimates before tax, fees, and inflation unless an input explicitly covers them.
- Rates are treated as fixed for the whole period — variable-rate products will drift from this projection.
- This is educational maths, not financial advice. Check anything contractual with the lender or your accountant.
Related tools
Cite this calculator
Writing about this topic? Grab a citation — every link helps keep these tools free.
RevenueLab. (2026). Newsletter Revenue Calculator. Retrieved from https://www.revenuelab.fyi/toolbox/newsletter-revenue
<p>Source: <a href="https://www.revenuelab.fyi/toolbox/newsletter-revenue" target="_blank" rel="noopener">Newsletter Revenue Calculator — RevenueLab</a> (2026).</p>
Source: [Newsletter Revenue Calculator — RevenueLab](https://www.revenuelab.fyi/toolbox/newsletter-revenue) (2026).