← Newsletter Sponsorship Calculator
First sponsors rarely come from pitching strangers — they come from being findable and credible at the exact moment someone with budget reads your issue. The media kit's job is to make saying yes frictionless. Two pages is plenty.
Subscribers, open rate, click rate, and — the line that builds the most trust — engaged readers (opened or clicked in the last 90 days), stated plainly. Add audience composition if you know it (roles, geography), growth over the last six months, and one sentence on how the list was built ("organic, via the blog and word of mouth" is a selling point; sponsors have been burned by bought lists). No screenshots of your best-ever issue; averages, dated.
Your placements (main / secondary / classified) with a flat price each — worked out from engaged readers × your niche CPM, then stated as a number, not a formula. Specimen ad formats with character counts. Booking logistics: lead time, what you need from them, when they get performance numbers. And your editorial line in one sentence: what you won't advertise, and that sponsored content is always labelled. Sponsors read that as professionalism, and your readers' trust is the asset being priced.
In rough order of yield: companies whose products you've already mentioned organically (they're warm and they know you convert), readers' own companies (a "sponsor this newsletter" link in every footer is the highest-ROI line you'll write), sponsorship marketplaces (fine for filling gaps; they take a cut and set market floors), and inbound from being visibly sponsored — the first logo attracts the second. Cold outreach sits last for a reason: it works at scale nobody's first sponsor needs.
Don't discount your published rate to close the first deal — first sponsors become reference prices, and raising a rate 3× later is a harder conversation than starting right. If you want to sweeten a first booking, add value instead: an extra classified mention, a second issue at half price. The rate card survives; the favour is visibly a favour.
General information, not business or financial advice.