Pitch Circle Diameter (PCD) Calculator
Use the boxes on this page to calculate the Pitch Circle Diameter or the Nut to Nut Dimensions of your wheels.
1. Calculate PCD from Nut to Nut Dimensions
First enter the number of wheel studs and then the distance from one nut to the adjacent one to the nearest 0.5mm. The resultant fgure is the PCD to the nearest mm.
2. Calculate Nut to Nut Dimension
First enter the number of wheel studs and then the PCD The resultant figure is the distance beween adjacent nuts to the nearest millimetre.