How To Measure Wheel Bolt Pattern

This video will show you how to properly measure a bolt pattern on a 5 lug wheel. Measure your rims bolt pattern. Each section shows how to determine the pattern of a wheel with a specific number of bolt holes.

how to measure wheel bolt pattern

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How to measure wheel bolt patterns.

How to measure wheel bolt pattern.

The hub lug bolt pattern will be determined by the number of lug bolts and the distance between the opposing hub bolt see 4 lug hub diagram.
So if you have a four lug hub and the measurement came out to 100mm.
Its really very simple to measure your wheels bolt patter with a tape measure or ruler.
Bolt patterns for wheels with four bolt holes.

If there are 7 studs multiply the measurement by 103.
Measure using the metric side of the ruler in millimeters.
This is sometimes called the bolt circle or some such thing.
The diagram is an example of the proper method for measuring bolt patterns.

One other trick is to to use a straight edge block across the back of two of the lugs a and then set the ruler on that and measure up to the center of the bolt like in the picture.
Measure from the center of one bolt hole to the center of its opposite to determine the diameter of the lug pattern on wheels with four bolt holes.
If there are 5 studs multiply the measurement by 105 to get the bolt pattern diameter.
The conversion of inches to mm is 1 inch to 254 mm.

First measure the center to center distance between two studs that are across the hub from each other.
Because of the multiplication involved.
Measure from center of one lug stud that the lug nut bolts on to to the center of the lug directly across from it if you have four six or eight lug hubs.
The bolt pattern or bolt circle is the diameter of an imaginary circle formed by the centers of the wheel lugs.

If the trailer hubs have an even number of bolts holding the wheel measure from the center of one bolt to the center of the bolt directly opposite using a ruler tape measure or caliper.