The bolt pattern (also known as the P.C.D. or Pitch Circle Diameter) of a vehicle can be referenced in either standard or metric, and usually the year and kind of vehicle dictates how the bolt pattern is referenced. Most older cars the bolt pattern is referenced in standard “Five on Four and a Half” (or 5×4.5), versus a model car that is referenced in metric “Five on One Fourteen Point Three” (or 5×114.3). Both are correct, but it can sometimes be confusing as we have heard folks say “No, my car isn’t 5×114.3 it’s 5×4.5!!”. Here’s a handy reference for those times:

BOLT PATTERN CONVERSION  (mm to inches)

COMMON REFERENCE MILLIMETERS CONVERTS TO INCHES
Three on One Twelve 3×112 CONVERTS TO 3×4.41
COMMON REFERENCE MILLIMETERS CONVERTS TO INCHES
Four on Ninety Eight 4×98 CONVERTS TO 4×3.9
Four on One Hundred 4×100 CONVERTS TO 4×3.94
Four on Four 4×101.6 CONVERTS TO 4×4
Four on One “O” Eight
— or —
Four on Four and a Quarter
4×108 CONVERTS TO 4×4.25 or 4×4 1/4
Four on One Ten 4×110 CONVERTS TO 4×4.33
Four on One Fourteen Point Three
— or —
Four on Four and a Half
4×114.3 CONVERTS TO 4×4.5 or 4×4 1/2
COMMON REFERENCE MILLIMETERS CONVERTS TO INCHES
Five on One Hundred 5×100 CONVERTS TO 5×3.94
Five on Four 5×101.6 CONVERTS TO 5×4
Five on One “O” Eight
— or —
Five on Four and a Quarter
5×108 CONVERTS TO 5×4.25 or 5×4 1/4
Five on One Ten 5×110 CONVERTS TO 5×4.33
Five on One Twelve 5×112 CONVERTS TO 5×4.41
Five on One Fourteen Point Three
— or —
Five on Four and a Half
5×114.3 CONVERTS TO 5×4.5 or 5×4 1/2
Five on One Fifteen 5×115 CONVERTS TO 5×4.52
Five on One Twenty 5×120 CONVERTS TO 5×4.72
Five on Four and Three Quarter 5×120.7 CONVERTS TO 5×4.75 or 5×4 3/4
Five on Five
— or —
Five on One Twenty Seven
5×127 CONVERTS TO 5×5
Five on One Thirty 5×130 CONVERTS TO 5×5.12
Five on One Thirty Five 5×135 CONVERTS TO 5×5.3
Five on Five and a Half
— or —
Five on One Thirty Nine
5×139.7 CONVERTS TO 5×5.5 or 5×5 1/2
Five on One Fifty 5×150 CONVERTS TO 5×5.9
COMMON REFERENCE MILLIMETERS CONVERTS TO INCHES
Six on One Fourteen
— or —
Six on Four and a Half
6×114.3 CONVERTS TO 6×4.5 or 6×4 1/2
Six on One Twenty Seven
— or —
Six on Five
6×127 CONVERTS TO 6×5
Six on One Thirty 6×130 CONVERTS TO 6×5.1
Six on One Thirty Two 6×132 CONVERTS TO 6×5.2
Six on One Thirty Five 6×135 CONVERTS TO 6×5.3
Six on Five and a Half
— or —
Six on One Thirty Nine
6×139.7 CONVERTS TO 6×5.5 6×5 1/2
COMMON REFERENCE MILLIMETERS CONVERTS TO INCHES
Seven on One Fifty 7×150 CONVERTS TO 7×5.9
COMMON REFERENCE MILLIMETERS CONVERTS TO INCHES
Eight on Six and a Half 8×165.1 CONVERTS TO 8×6.5 or 8×6 1/2

 

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5 Responses to Bolt Pattern Conversion Chart (mm to inches)

    • If you’re converting from one size bolt pattern to another you will need a wheel adapter. Give us a call and we can help find one that fits for you.

    • We stock nearly all adapters – give us a call and we’ll work with you to ensure you get the correct adapter for your vehicle and wheel combination.

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