There are many different important parameters when it comes to car wheels, one of those being the bolt pattern. It's actually pretty straightforward to measure.

"Wheel bolt pattern" refers the number of lugs and bolt circle for a given wheel. This is determined by the distance of a circle drawn through the center of your lug nuts.

Bolt Pattern Pro, a simple set of plastic gauges designed to make measuring wheel bolt patterns easier and faster, was judged one of the best new products at the recent 2010 Specialty Equipment Market ...

There are many different important parameters when it comes to car wheels, one of those being the bolt pattern. How do you actually measure it?