Partners and sister sites
This site is deliberately narrow. It covers shipping, customs and ecommerce economics in depth and nothing else, because the alternative — a general calculator library with a shipping section bolted on — is how you end up printing a divisor that changed two months ago.
Where a reader needs something outside that scope, we point at people who cover it properly.
ToolsBay
A browser-based toolbox for the documents and images on either side of a shipment — merging, splitting and compressing PDFs, turning spreadsheets and Word files into PDFs, and compressing or converting listing photos. Nothing is uploaded; every tool runs on your own machine.
If you need to fold a commercial invoice, packing list and certificate of origin into one PDF, get a file under a broker portal's upload limit, or convert listing photos into a format a marketplace will accept, that is the place to go. We would rather send you somewhere useful than build a worse version of a tool that already exists.
Visit ToolsBay →How we handle outbound links
Links to carriers, marketplaces and government tariff lookups are there because you need the authoritative source,
and they carry rel="nofollow" as a matter of routine — we are citing them, not vouching for them.
ToolsBay is run by the same person as this site. We say so rather than presenting it as an arm's-length recommendation, which is why it is named in the footer and on this page. The links to it inside articles are followed and are placed only where a specific tool there is genuinely the better answer — customs paperwork, listing images — and not on every page.
On affiliate relationships
We do not currently run affiliate links inside any calculator, and if that changes there are two rules we will hold to. The honest answer comes first, before any commercial suggestion. And anything we earn from will be labelled on the page, not buried in a footer.
The reason is straightforward. Every rate calculator that shows you a precise price is quoting a rate it earns on. That is the structural conflict that made this category worth entering, and reproducing it would defeat the point.
Working with us
We are open to a few specific things: correcting a rate we have wrong, a data partnership where you publish authoritative fee or tariff data, or embedding our calculators on your own site. The embed page covers the last one. For the others, use the contact page.
We are not open to paid guest posts, link exchanges, or "we noticed a broken link on your page" emails that are about neither.