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v4.5 Launch Edition
SAE J2807 Compliant

Your Door Sticker
Is Your True Limit.

Stop guessing. SafeTowCalc uses physics-based telemetry to find your actual safety margins for any truck/trailer combination.

Calculate My Safety

1. Spec Inputs

In-Vehicle Load

Trailer Specs

System Ready

Awaiting Vehicle Input Profile

Authority Recommended Gear

Equal-i-zer WDH

Integrated 4-point sway control for bumper trailers over 5,000 lbs.

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Air Lift 5000

Adjustable air springs that eliminate rear-end sag and light steering.

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Prodigy P3

Industry-leading proportional brake controller for heavy trailers.

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Trailer TPMS

Real-time tire monitoring to prevent highway blowouts.

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15-Point Safety Protocol

Professional standards for hardware, tires, and load stability.

I. Hardware

  • Coupler physically locked.
  • Chains crossed under hitch.
  • Breakaway anchored to frame.
  • 7-Pin electrical tested.
  • WDH cotter pins secure.

II. Tires

  • Truck at COLD sticker PSI.
  • Trailer at max ST PSI.
  • Sidewalls crack-free.
  • Lugs torqued to spec.
  • Spare inflated/accessible.

III. Load

  • 12% Tongue ratio achieved.
  • Gear centered over axles.
  • Holding tanks drained.
  • Cargo secured internally.
  • Spring bars level and set.

Our Safety Mission

SafeTowCalc was built to bridge the gap between marketing brochures and physical towing reality. We use standardized SAE J2807 logic to ensure families stay safe on the highway.