RigWise HQ is a collection of free calculators for truck and trailer owners. Check whether your truck can tow a trailer, compare tire sizes, size a motorcycle helmet, or estimate moving costs — no signup, no fees.
Every tool on this site produces planning estimates, not professional advice. Prices vary by region and change over time; ratings and capacities come from manufacturers and public sources. Always verify critical numbers — vehicle ratings, electrical loads, structural spans, tax incentives — against the official source or a licensed professional before acting on them.
Every calculator here starts from numbers you supply: the payload and tow ratings from your truck's door-jamb sticker and owner's manual, the size molded into your tire's sidewall, your head circumference in centimeters, or your home size and moving distance. The tools then apply published reference data — manufacturer tow and payload ratings, tire load and inflation tables, the helmet size charts published by makers such as Shoei, Arai, HJC, and Bell, and published moving-cost ranges for truck rental, containers, and full-service movers. Each tool page states its assumptions next to the result, and the guides work real examples with real numbers so you can follow the arithmetic yourself. Nothing is calculated on a server: the math runs in your browser, and the figures you enter are not stored or sent anywhere.
Ratings and size charts are checked against the manufacturers' published documents when those documents are updated, and cost ranges are reviewed against current published data. Where a figure is an estimate rather than a published rating — a typical moving price range, for example — the page says so and gives a range instead of a single number. If you find a figure that disagrees with a current manufacturer document, the contact address below reaches a person, and the document wins.
A calculator cannot weigh your trailer, measure your head, or read your door sticker for you. Tongue-weight percentages are rules of thumb, helmet fit varies by head shape as well as circumference, and moving quotes depend on stairs, elevators, and timing in ways no form captures. Treat every result as a well-reasoned starting point, then confirm the numbers that matter — ideally on a scale, with a tape, or against the manufacturer's own chart — before you spend money or hit the road.