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Fifth Wheel St.

iPhone / iPad
  • Utilities
  • Travel
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Fifth Wheel St. (RV Weight Calculator) is the premier self-help RV safety app that provides the industry-leading 13-Point Weight Safety Report. Fifth Wheel St. simplifies the tasks involved with weighing your tow vehicle and fifth wheel or gooseneck trailer with step-by-step instructions. The app is designed especially for RV owners, outdoor recreationalists, farmers and ranchers who tow fifth wheel or gooseneck trailers. The final report details 13 weighing points including 7 points indicating the safety margin or overload conditions by displaying red or green numbers.

Our RV weight safety app is the best that answers "How to Weigh Your Fifth Wheel or Gooseneck Trailer" and determines if you are towing safely below your load ratings. Our app weighing instructions provide additional glossary terms used in the industry and how to weigh at multiple platform scales and single axle scales.

View your weight safety report in 4 easy steps:

-Step 1: Enter your vehicles' certification weight ratings.
-Step 2: Weigh your vehicle with your fifth wheel or gooseneck trailer attached and enter the required weight data.
-Step 3: Weigh your vehicle without your fifth wheel or gooseneck trailer attached and enter the required weight data.
-Step 4: View the results of your Weight Safety Report.


Are you towing below the load ratings?
The RV Safety and Education Foundation data indicates that 60% of all tow vehicles and 55% of all 5th wheel trailers exceed one or more weight safety ratings.

Ensure you're not the one exceeding a load rating.


The number one most-reported RV insurance claim is the result of damage from the sudden release of air from tires, otherwise known as a blowout.

An overload combined with under or over inflated tires can cause a sudden blowout or breakdown.

When towing a trailer, it’s very important to ensure that the load is distributed evenly.

You want to make sure that all necessary safety precautions have been taken to prevent an accident or a blowout.

Even a slight overload, or unequal weight distribution, can seriously restrict the vehicle’s braking and steering capabilities.

Higher fuel consumption and driver fatigue are also common side effects of traveling with an overloaded, heavy and generally poor-handling trailer.

Install this app and weigh your rig soon to achieve safer towing for you, your family, and all on the road.

Caution: Do not use this app for conventional towing. To learn more about conventional towing safety and reports, please visit our web site at