Build Weight Estimator
Estimate how much your conversion adds to the kerb weight.
About the Build weight calculator
Use this build weight estimator for van payload & legal weight limits. Estimate how much your conversion adds to the kerb weight.
Enter your build weight details
Extras like fixings, wiring and adhesives.
Your build weight results
Build subtotal
281 kg
7 item types
Contingency (10%)
28 kg
Total build weight
309 kg
Why build weight matters for van payload & legal weight limits
Plan with confidence
Getting your build weight numbers right early avoids costly rework, undersized components and surprises on the road.
Related weight & payload tools
Pair this with the rest of our weight & payload calculators to plan your full van conversion.
Build weight calculator FAQ
- What does the Build Weight Estimator do?
- Estimate how much your conversion adds to the kerb weight. It is designed for van payload and legal weight so you can plan with confidence.
- Is the build weight calculator free to use?
- Yes. All VanTools calculators, including the Build Weight Estimator, are free to use with no sign-up required.
- How accurate are the build weight results?
- Results are estimates based on the values you enter and standard van payload and legal weight assumptions. Always sanity-check against manufacturer data and your real-world conditions.
- Can I share or save my build weight calculation?
- Yes. Use the Share button to copy a link that includes your inputs, or use Export to download a PDF or image of your results.