Heavy-Haul Calculators
Free interactive calculators for heavy-haul carriers and brokers. No signup, no email required — written by the OverSizeTMS team and updated as the underlying regulations change.
FHWA Bridge Formula B
Verify your axle group is under the federal weight limit before you file the permit. Plug in axle spacings and weights; get the legal maximum from the FHWA formula in plain numbers.
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More calculators on the way. Axle weight per state, permit fee estimator, and route-distance / pilot-car cost calculators are next. Email [email protected] if there’s a specific calculation you do by hand today that should live here.