Wheel PCD Calculator

Calculate Pitch Circle Diameter (PCD) for perfect wheel fitment

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PCD Calculator

Number of Bolt Holes

Measurement Type

Center to Center

Between adjacent holes

Edge to Edge

Between hole edges

Measurement (mm)

Calculation Result

Enter your measurements to calculate PCD

Understanding Pitch Circle Diameter (PCD)

What is PCD?

Pitch Circle Diameter (PCD) is the diameter of an imaginary circle that passes through the center of all the bolt holes on a wheel. It's a critical measurement for ensuring proper wheel fitment and is typically expressed as the number of bolts followed by the diameter in millimeters (e.g., 5x114.3).

The PCD must match exactly between your vehicle's hub and the replacement wheel for proper installation and safe operation. Using wheels with incorrect PCD can lead to improper mounting, vibration, and potential safety hazards.

How is PCD Calculated?

For Even Number of Holes:

PCD = Distance across center (diameter)

For Odd Number of Holes:

PCD = Distance ÷ cos(180°/number of holes)

Edge-to-Edge Method:

PCD = Distance ÷ sin(180°/number of holes)

When Do You Need PCD Measurements?

Wheel Replacement:

Upgrading to aftermarket wheels
Replacing damaged wheels
Seasonal tire changes

Performance Modifications:

Installing larger diameter wheels
Weight reduction with lightweight alloys
Custom wheel designs

Need Professional Wheel Installation?

Our calculator helps you find the right specifications, but professional installation ensures safety and optimal performance. Book wheel installation services through our platform.