Use a scale ticket and your build’s weight locations to estimate how much load goes onto each axle.
Camper Van Payload & Axle Load Calculator
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How it works
For each added load, multiply its weight by its distance from the front axle and divide by the wheelbase. That is the change on the rear axle; the remainder goes on the front. A load behind the rear axle can take weight off the front.
Reference: Ford vehicle loading guidance hosted by NHTSA.
What to check before you use the result
Read GVWR and both GAWR values from the vehicle certification label. Count each item once, including people, water, and gear absent from the scale ticket. Reweigh the finished van by axle and check the tires separately.
