Chassis, GVW, Axle Load and Payload Calculator
Estimate remaining gross payload reserve from chassis, body, equipment, crew and consumables inputs before reviewing axle loads and route limits.
Review contacts: Frank Pan and Mia Fu.
Maximum GVW − chassis − body − installed equipment − crew/loose equipment − consumablesEnter every input in the first group. Use 0 only for a confirmed zero quantity.
Entered limit − entered estimated loadEntered limit − entered estimated loadHow to use this tool
A positive gross reserve is necessary but not sufficient: axle distribution, centre of gravity and legal limits still require engineering review.
- Enter the maximum permitted completed-vehicle mass for the selected approval basis.
- Include body, installed equipment, crew, loose equipment and operational consumables.
- Review axle distribution separately before approval.
Keep a record of your inputs
Add the project ID, responsible person, date and revision before using the worksheet to compare suppliers or make a technical decision. Record where each input came from. Leave unknown values open for confirmation; do not fill a gap with an assumed catalogue figure.
The result helps with calculation or recordkeeping only. A competent reviewer must check the units and operating conditions against the selected equipment documents. That review must also cover destination requirements, interactions between systems and the evidence needed at acceptance.
Assumptions and limits
- Inputs must use the same mass condition.
- Axle reserves use buyer-entered estimated loads; the tool does not calculate load distribution, centre of gravity, dynamic load or legal approval.