Custom Offsets Bolt Pattern Converter: Metric to Standard Units
What's the difference between standard and metric bolt patterns? Use this calculator to make sure you get the right bolt pattern for your ride!
There is nothing—and we mean nothing—more frustrating than waiting weeks for a set of custom wheels to arrive, jacking up your truck, and realizing the bolt pattern doesn’t match your studs.
Auto manufacturers use both Metric and Standard (Imperial) measurements for bolt patterns, and they are often used interchangeably in the aftermarket world. You might own a Chevy Silverado that requires a 6x139.7 bolt pattern, but the vintage-style wheels you are looking at are listed as 6x5.5. Are they the same? Will they fit?
The Custom Offsets Bolt Pattern Converter is the "sanity check" every builder needs before hitting the checkout button. Whether you drive a Ford F-150, a RAM 1500, or a Toyota Tacoma, knowing your bolt pattern conversion ensures a safe and secure fitment.
Simply select your measurement from the dropdown menu—either Metric or Standard—and our tool will instantly provide the equivalent value. Common conversions include:
- 5x114.3 converts to 5x4.5 (Common on Jeeps and Fords)
- 6x139.7 converts to 6x5.5 (Standard for Chevy and Toyota trucks)
- 8x165.1 converts to 8x6.5 (Common on Heavy Duty trucks)
Don't rely on guesswork when it comes to the hardware holding your wheels to your vehicle. Verify your bolt pattern here, then head over to the gallery to find the wheels that fit your ride perfectly.
What's the difference between standard and metric bolt patterns? Use this calculator to make sure you get the right bolt pattern for your ride!