4x100 Bolt Pattern: PCD, Meaning & Wheel Fitment
4x100 means 4 lug holes arranged on a bolt circle with a diameter of 100 mm (about 3.937 inches).
4x100 Quick Facts
What Does 4x100 Mean?
The first number tells you how many wheel studs or lug holes the pattern uses. The second number is the pitch circle diameter (PCD): the diameter of the imaginary circle that passes through the centers of those studs.
4x100 in Inches
A 4x100 pattern has a PCD of about 3.937 inches.
| Bolt pattern | 4x100 |
|---|---|
| Lug count | 4 |
| PCD | 100 mm |
| PCD in inches | 3.937 in |
How to Measure the 4x100 Bolt Pattern
For an even-number lug pattern, measure from the center of one wheel stud to the center of the stud directly opposite it. That diameter is the PCD.
Because small measurement errors can lead to the wrong wheel, use the vehicle or wheel manufacturer's specification whenever possible.
Does a Matching 4x100 Bolt Pattern Guarantee Wheel Fitment?
No. Bolt pattern is only one part of wheel compatibility. You must also check center bore, wheel diameter, wheel width, offset/backspacing, brake clearance, lug-seat/thread hardware and load capacity before installing a wheel.
Check Your Vehicle Before Choosing Wheels
Use the vehicle fitment finder for vehicle-specific specifications, and use the wheel offset calculator to understand position and clearance changes.
4x100 FAQ
What does 4x100 bolt pattern mean?
It means the wheel uses 4 lug holes on a 100 mm pitch circle diameter.
What is 4x100 in inches?
The PCD is about 3.937 inches.
Do all wheels with a 4x100 pattern fit?
No. Center bore, offset, width, diameter, brake clearance, lug hardware and load requirements must also be compatible.