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Towing & trailer calculators

Fifteen focused tools for the calculations truck and trailer owners actually need. All tools are free and run in your browser.

Check tow rating, payload, GVWR and GCWR together instead of relying on one headline number.

A quick towing check for trailer weight and truck payload with a clear margin report.

Estimate payload used by passengers, cargo, hitch hardware and trailer tongue or pin weight.

Calculate usable trailer payload from GVWR, empty weight and fixed onboard load.

Estimate tongue or pin weight and compare it with a target percentage range.

Compare loaded vehicle and trailer weight with the manufacturer's Gross Combined Weight Rating.

Estimate loaded vehicle or trailer weight and compare it with GVWR.

Calculate cubic-yard volume, material weight and payload-limited safe planning volume for a dump trailer.

Estimate the weight of gravel, dirt, sand, mulch, concrete and other bulk material by volume.

Find the approximate ball-mount drop or rise needed to tow a trailer level.

Compare estimated trailer axle-group load with the combined ratings of the installed axles.

Estimate axle-group, per-axle and per-tire load from trailer weight and tongue-weight percentage.

Estimate average trailer-tire load and compare it with the tire sidewall rating plus a planning reserve.

Estimate how moving cargo forward or rearward changes tongue weight using a simple static-moment model.

Check trailer payload, GVWR and deck length against a machine, attachments and extra gear.