16 calculators
Tongue weight and pin weight, cargo carrying capacity, payload remaining, GCWR headroom, hitch class and drop, weight distribution bar rating, brake controller gain, trailer tire load and pressure, sway risk, grade descent, turning clearance, truck camper match and towing fuel cost.
Every calculator here shows its formula on the page rather than hiding it behind the answer, labels each figure as a published standard, a rule of thumb or something that has to come off your own vehicle, and reports margins rather than telling you that something is safe. None of them will tell you that a vehicle can tow a trailer, because that answer lives on your door jamb and not on this site.
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A brochure dry weight and a guessed tongue weight will give you a confident answer that is wrong in the dangerous direction. These are the instruments that turn the guess into a measurement.
Ten sensors, enough for a dually tow vehicle and a triple axle trailer together, which is the only configuration where the cheaper kits genuinely run out.
Best for: A dually and a large fifth wheel monitored as one rig.
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Two gauges on one scale body, so a 400 lb tongue weight can be read on the 2,000 lb gauge where the resolution is useful rather than squinted at on the 5,000 lb one.
Best for: Somebody weighing both a light trailer and a heavy one.
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Reads in both pounds and kilograms on one gauge, at 5,000 lb capacity.
Best for: Pin weight, with a metric reading for anybody who wants it.
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Sherline is the scale the towing community actually uses, and a 1,000 lb capacity covers most travel trailers. Hydraulic, with no batteries to be dead when you need it.
Best for: A trailer whose tongue weight is under 1,000 lb.
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