About marketing-rechner.com
marketing-rechner.com is an independent, ad-funded project from Switzerland. The aim is to take marketing and finance metrics that usually sit behind expensive software or scattered across blog posts, and make them available as free, transparent calculators — with an honest reading of the numbers rather than benchmark figures repeated from somewhere else.
Who is behind it
The site is run by Reto Pontoni, based near Zurich. He studied economics with a focus on banking and finance at the University of Zurich and later qualified as a Certified Expert for IFRS Accounting and a Swiss Certified Treasurer.
He came to this from the numbers side: group controller, then group treasurer at an international Swiss technology group, including two years with operational finance responsibility for the US business in California. After that, global treasury director at Groupon — an environment where every decision hung on a metric.
Since mid-2018 he has run a Swiss wholesale business that he bought together with a colleague. The purchase followed several hundred companies screened, around forty on the shortlist and eight due diligences — one of which became the deal. Laying that many sets of accounts side by side teaches you which metric carries weight and which one merely looks good.
For this site, though, something less impressive matters more: he built the company's web shop himself and still maintains it. Google Ads, Mailchimp, Analytics, Search Console — all first-hand, at the scale of a small business, mistakes included. SEO, for one, was simply neglected at the start; retrofitting it is considerably more work than getting it right from day one.
On top of that come several startup investments, among them e-commerce, edtech, foodtech and health. In that world CAC, customer lifetime value and the LTV:CAC ratio are not theory but the figures a funding round hangs on. So the calculators here are not drawn up in the abstract — they come from someone who needs these numbers himself, and who habitually looks at marketing the way a finance person does: contribution margin rather than revenue, payback period rather than reach.
How we work
Every calculator is built on the established, openly documented formula for its metric — worked through on a concrete example you can follow step by step on the page. Where we quote benchmarks or reference values, we make their origin transparent and point to the original sources in the knowledge articles. We deliberately avoid the flattering top-end figures common in the industry and present numbers in a way that is useful for your own decision. All inputs are processed locally in your browser; your values never leave your device.
Who it is for
The calculators are aimed at founders, marketing managers, e-commerce operators and anyone who needs a reliable metric quickly and without signing up — whether for budget planning, an investor conversation or the assessment of a campaign.
Contact
Questions, spotted an error, or want a calculator that is missing? Write to info@marketing-rechner.com — feedback goes straight into the next round of work.
This is a translation provided for convenience. In the event of any discrepancy, the German version shall prevail.