Free · runs in your browser · nothing is uploaded

Estimate a sponsor rate from your newsletter metrics.

Most operators pick a number that "feels right" — and it's almost always hundreds too low. Enter five numbers from your dashboard and this tool prices your list on the same real 2025 CPM maths advertisers use, then tells you — to the pound — how far below your defensible rate you're charging, and what that gap quietly cost you on your last deal. No email required.

Your numbers

Pull these straight from your last few issues. The tool prices your list — not an average.

Niche sets your CPM band — B2B finance commands far more than general lifestyle.

Optional — makes the gap real

Your current price for one top/primary sponsor slot. Leave blank if you've never sold one.

100% private. The maths runs in your browser with JavaScript. Nothing you type is uploaded, stored, or sent anywhere.

Your estimated rate range, rate card and planning gap will appear here.

Why these numbers are real

A visible CPM worksheet, not a guess.

Priced on opens, not subscribers

Advertisers pay for eyeballs that actually open. We price every placement on CPM — cost per 1,000 opens — exactly how a media buyer evaluates you.

Your engagement moves the number

A list with a strong open and click rate earns the top of its niche band; a weak one the bottom. Your click rate is weighted most — it's the signal buyers trust.

Bands from public 2025 data

CPM ranges are derived from public 2025 newsletter-sponsorship rate data (beehiiv, Paved). Opening guidance, not a market-price promise — your niche and reputation move the real figure.

After the number

A number doesn't fill slots. The system does.

Now you have a planning estimate. The next step is a complete workflow: relevant sponsor outreach, clear rate explanations, inventory tracking, and recording agreed terms. That's the full Sponsorship Rate-Card Kit: rate-card worksheet, media-kit tool, scripts, sequences, trackers and insertion-order draft.

See the full system — £49

30-day clarity refund · instant download · no subscription