AbraCalc

F-150 Towing a 5th Wheel Trailer

A Ford F-150 with a 13,000 lb tow capacity towing a 9,500 lb fifth-wheel trailer is using about 73% of its capacity — within safe limits.

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How to use this tool

  1. Enter the fully loaded trailer weight in pounds.
  2. Enter your vehicle's tow capacity from the owner's manual.
  3. Enter the tongue weight and your vehicle's tongue weight limit.
  4. Stay under 80% capacity for safe towing; 100%+ is over the limit.

Fifth-wheel trailers are heavy — check whether your F-150's tow rating is sufficient for your RV setup before hitching up.

Frequently asked questions

What percentage of tow capacity is safe?
Stay under 80% of your vehicle's maximum tow rating for a comfortable safety margin. At 90–100% the vehicle is stressed and braking distance increases significantly.
What is tongue weight?
Tongue weight is the downward force the trailer coupler exerts on the hitch ball. It should be 10–15% of gross trailer weight. Too little causes trailer sway; too much stresses the vehicle's rear suspension.