TowCheckNumbers before miles

TOWCHECK CALCULATOR

Estimated Tongue Weight Calculator

Use values from physical labels and official documentation. Results are estimates, not a safety, engineering, or legal determination.

Planning estimate: — lb
Commonly referenced 10–15% planning range: — lb
Measured percentage: —%

Enter a non-negative loaded trailer weight.

LAST UPDATEDJuly 20, 2026
REVIEW STATUSSource-reviewed by TowCheck
SOURCES CHECKEDJuly 20, 2026

Methodology: Calculations are derived from official manufacturer towing guides, NHTSA regulations, and tire load specifications. Read calculation methodology or report a correction.

HOW TO USE THIS TOOL

Tongue Weight: what the result means

Use this for planning, then replace the estimate with a measurement of the loaded trailer.

Steps

  1. Choose the trailer type.
  2. Enter loaded trailer weight.
  3. Use or adjust the planning percentage.
  4. Enter measured tongue weight when available.

Formula

Tongue-weight percentage = tongue weight ÷ loaded trailer weight × 100.

Important limits

  • A percentage alone cannot establish stable handling.
  • Moving cargo changes tongue weight.

Primary references

TowCheck uses these references for terminology and planning context. Your exact vehicle, trailer, tire and equipment documentation always controls.

review the full calculation methodology or report a correction.