Too little tongue weight and the trailer wags; too much and it lifts your front wheels. Enter trailer and tongue weight to see your percentage against the safe band, and which way to shift the load.
Bumper Pull Trailer Tongue Weight Calculator
Bumper pull trailers are the most common — and the most commonly overloaded. Get the tongue weight right before you tow.
Enter gross trailer weight and axle position. The calculator returns tongue weight, checks it against your truck’s hitch ball rating, and flags overload risk.
A bumper pull hitch ball rated at 500 lbs tongue weight can’t safely haul a trailer that puts 800 lbs on the ball. The rating is the limit.
Anyone towing a conventional bumper pull trailer, camper, or boat on a standard hitch ball.
- SAE J2807
- FMCSA towing regulations
- NHTSA hitch class ratings
Disclaimer: This tool is provided for educational and informational purposes only and does not constitute legal, safety, or professional advice. Sunferno Automotive Accessories cannot verify how products are installed, used, or attached in your specific vehicle or situation — proper installation, use, and securement are solely the responsibility of the user. Laws and regulations vary by jurisdiction and change over time; always confirm current requirements with your local authorities or a qualified professional. Sunferno products must be used strictly in accordance with manufacturer instructions and applicable regulations.