How to Use the Trailer Axle Placement Calculator

Step 1: Enter Trailer Length

Begin by inputting the total length of your trailer in feet. This measurement should be from the front of the trailer (where it connects to the towing vehicle) to the rear end. Be as precise as possible, as even small differences can affect the calculation.

Step 2: Input Trailer Weight

Next, enter the weight of your empty trailer in pounds. This is the weight of the trailer itself without any cargo or additional equipment. If you’re unsure, you can usually find this information in your trailer’s documentation or by weighing it at a truck scale.

Step 3: Specify Cargo Weight

Input the expected weight of the cargo you plan to carry in the trailer. If you’re unsure or if the cargo weight varies, use an average or maximum expected weight. This helps ensure your calculation accounts for the heaviest load scenarios.

Step 4: Set Desired Tongue Weight Percentage

Enter your desired tongue weight percentage. The tongue weight is the downward force exerted on the hitch ball by the trailer coupler. A common recommendation is 10-15% of the total trailer weight, but this can vary based on trailer type and towing vehicle specifications. The default is set to 10%, but you can adjust this based on your specific needs or recommendations.

Step 5: Calculate and Review Results

Click the “Calculate Axle Placement” button. The calculator will process the information and display the results, including:

• The optimal axle position from the front of the trailer
• The resulting tongue weight based on this placement
• The percentage of total weight that the tongue weight represents

Step 6: Interpret the Results

Review the calculated axle position and consider how it fits with your trailer design. The explanation provided with the results will help you understand how the calculation was made and what it means for your trailer’s weight distribution.

By following these steps, you can effectively use the Trailer Axle Placement Calculator to optimize your trailer’s design or setup, ensuring safer and more efficient towing experiences.