D-value calculator

Use our handy calculator to find the correct D-value for your requirements

The D-Value calculates the theoretical pulling force between the truck and trailer.

The calculated D-Value figure can then be used to ensure that you select the correct fifth wheel for your application.

D-value calculator
Imposed kingpin load (kg)
Unladen weight of tractor unit (kg)
Max laden weight of trailer (kg)
D-value =