Marcus Vance writes ShipCompare's calculator guides and carrier comparisons. His focus is the math behind a shipping price: how weight, size, and distance turn into a number, and where that number tends to surprise people. He is not a former carrier employee or logistics executive. His background is in writing clearly about numbers other people would rather not work out by hand, and every figure he publishes here is checked against the carrier's own published rate pages before it goes live.
Chris Terry publishes ship-compare.com as part of a small network of shipping and calculator sites. Chris does not write the guides but is the point of contact for corrections, licensing questions, and editorial policy. See the editorial standards page for how the site sources and updates its rate data.
How to reach either of them
Use the contact form for a correction, a question about a specific figure, or anything else. Messages get read by the person best placed to answer them, not routed through a general inbox.