Boat Trailer Tongue Weight Calculator
Tongue weight that's too light or too heavy can cause dangerous trailer sway. Enter your boat and trailer's total loaded weight to find the recommended tongue weight range.
Recommended Tongue Weight
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Target Tongue Weight (lbs)—
Low End of Safe Range (9%, lbs)—
High End of Safe Range (11%, lbs)—
About this calculator
Calculate the recommended tongue weight for your boat trailer to ensure safe, stable towing based on total trailer and boat weight.
Frequently Asked Questions
What's the ideal tongue weight percentage?
Most trailer manufacturers recommend tongue weight be 9-11% of the total loaded trailer weight for stable towing.
What happens if tongue weight is too low?
Too little tongue weight can cause the trailer to sway or fishtail at highway speeds, which is dangerous.
What happens if tongue weight is too high?
Excess tongue weight can overload your tow vehicle's rear axle and hitch, reducing steering control and braking performance.