Wheel fitment measurement tool

Wheel Bolt Pattern Calculator

Select your lug count, measure the distance shown in the guide, then get the inch and metric bolt pattern before buying wheels or trailer rims.

What Should I Measure?

Measure from the center of one lug hole to the far outer edge of the lug hole across from it. Enter that distance.

Lug count

Measured distance

38 in

Unit

Measurement method

Measurement diagram

Bolt pattern means lug count x bolt circle diameter.

Example: 5x4.5 means five lugs on a 4.5 inch bolt circle. The metric version is 5x114.3.

Bolt pattern result

Measured pattern

5x4.5

5x114.3

Closest common pattern

5x4.5 / 5x114.3

Looks close to a common size.

Bolt circle
4.5 in

Metric
114.3 mm

Lug count
5

Method
5 lug

Fitment check: bolt pattern is only one part of wheel fitment. Confirm center bore, offset, wheel width, brake clearance, stud size, and load rating before purchase.

Measure first, Then Confirm Fitment

Most people using a wheel bolt pattern calculator are trying to answer one practical question: will this wheel fit my car, truck, or trailer? Start with the bolt pattern result, then confirm center bore, offset, width, brake clearance, stud size, and load rating before you buy.

How to Measure Wheel Bolt Pattern

Count the number of lug holes first. For 4, 6, and 8 lug wheels, measure from the center of one lug hole to the center of the opposite lug hole. For 5 lug wheels, measure from the center of one lug hole to the far outer edge of the lug hole across from it, then confirm with a chart or gauge.

5 Lug Bolt Pattern Measurement

Five-lug wheels are confusing because there is no hole directly opposite the starting hole. The common field method is center-to-far-outer-edge. Small measuring errors can change the closest pattern, so remeasure and compare against common sizes such as 5x4.5, 5x5, and 5x5.5.

Wheel Bolt Pattern Measurement Chart

Use this chart to compare common inch and metric wheel bolt patterns. Always verify exact vehicle or trailer specs before purchase.

Common pattern	Metric	Inches	Typical use
4x100	4x100	4x3.94	Small cars
5x4.5	5x114.3	5x4.5	Many cars, SUVs, trailers
5x5	5x127	5x5	Trucks, SUVs, Jeeps
5x5.5	5x139.7	5x5.5	Trucks and older applications
6x5.5	6x139.7	6x5.5	Trucks and trailers
8x6.5	8x165.1	8x6.5	Heavy-duty trucks
8x170	8x170	8x6.69	Heavy-duty trucks

Is 5X4.5 the Same as 5X114.3?

Yes. 4.5 inches multiplied by 25.4 equals 114.3 millimeters, so 5x4.5 and 5x114.3 describe the same bolt circle. That does not guarantee full fitment, because center bore, offset, wheel width, brake clearance, and stud size still matter.

Before Buying Wheels

Confirm bolt pattern

Remeasure or check vehicle specifications if the result is between common sizes.

Check center bore

The wheel center hole must fit the hub or use the correct hub-centric ring.

Check offset and width

Matching bolt pattern alone does not guarantee brake, fender, or suspension clearance.

Check hardware

Stud size, lug nut seat type, and load rating must match the vehicle or trailer.

Frequently Asked Questions

How is a 5 lug bolt pattern measured?+

A 5 lug bolt pattern is commonly measured from the center of one lug hole to the far outer edge of the lug hole across from it. Because there is no directly opposite hole, confirm the result with a chart or gauge.

Is 5x4.5 and 5x114.3 the same bolt pattern?+

Yes. 5x4.5 inches converts to 5x114.3 millimeters. They describe the same five-lug bolt circle, but wheel fitment also depends on center bore, offset, width, brake clearance, and stud size.

How do I figure out what bolt pattern my wheels are?+

Count the lug holes, then measure the bolt circle diameter. For 4, 6, and 8 lug wheels, measure center-to-center across opposite holes. For 5 lug wheels, use the center-to-far-outer-edge method.

What is the bolt pattern on a Kia?+

Kia bolt patterns vary by model, year, and trim. Many modern Kia vehicles use 5x114.3, but you should verify the exact vehicle specs, center bore, offset, and stud size before buying wheels.

How do you measure a trailer wheel bolt pattern?+

Trailer wheels use the same lug count and bolt circle idea. Count the lugs, measure the bolt circle, then verify load rating, pilot diameter, stud size, and hub compatibility before replacing trailer wheels.