Understanding your vehicle's bolt pattern (also known as P.C.D. or Pitch Circle Diameter) is crucial when selecting new wheels. This measurement can be expressed in both standard and metric units, with the vehicle's year and make typically determining which reference system is used. For instance, many classic or older vehicles use standard measurements like "Five on Four and a Half" (written as 5x4.5), while newer models often use metric measurements such as "Five on One Fourteen Point Three" (written as 5x114.3). These measurements refer to the same bolt pattern, just expressed differently, which sometimes leads to confusion among vehicle owners who might insist their car has one measurement but not the other.
To help eliminate any confusion and ensure you select the right wheels for your vehicle, we've created a comprehensive conversion chart that shows both metric and standard measurements. This reference guide is particularly valuable when shopping for wheels, as manufacturers may list specifications using either measurement system.
Understanding your vehicle's bolt pattern is crucial when selecting new wheels. This interactive tool provides comprehensive conversion data between metric and standard measurements for all common lug configurations, helping you make informed decisions when shopping for wheels.
| Common Reference | Millimeters | Inches |
|---|
Always check both the bolt pattern AND the center bore diameter when purchasing new wheels. While adapters can sometimes be used for bolt pattern differences, an incorrect center bore can lead to vibration and potential safety issues.
Remember, whether you're looking at metric or standard measurements, the physical bolt pattern remains the same - it's just expressed differently. This understanding is essential for making informed decisions when purchasing new wheels for your vehicle.
| Common Reference | Millimeters | Converts | Inches |
|---|---|---|---|
| Three on Ninety Eight | 3x98 | Converts to: | 3x3.86 |
| Three on One Hundred | 3x100 | Converts to: | 3x3.94 |
| Three on One Twelve | 3x112 | Converts to: | 3x4.41 |
| Three on One Twenty | 3x120 | Converts to: | 3x4.72 |
| Three on One Fifty | 3x150 | Converts to: | 3x5.91 |
| Three on One Sixty | 3x160 | Converts to: | 3x6.3 |
| Common Reference | Millimeters | Converts | Inches |
|---|---|---|---|
| Four on Ninety Five Point Two | 4x95.25 | Converts to: | 4x3.75 |
| Four on Ninety Eight | 4x98 | Converts to: | 4x3.86 |
| Four on One Hundred | 4x100 | Converts to: | 4x3.94 |
| Four on Four | 4x101.6 | Converts to: | 4x4 |
| Four on One "O" Eight — or — Four on Four and a Quarter |
4x108 | Converts to: | 4x4.25 or 4x4 1/4 |
| Four on One Ten | 4x110 | Converts to: | 4x4.33 |
| Four on One Fourteen Point Three — or — Four on Four and a Half |
4x114.3 | Converts to: | 4x4.5 or 4x4 1/2 |
| Four on One Fifteen | 4x115 | Converts to: | 4x4.53 |
| Four on One Twenty | 4x120 | Converts to: | 4x4.72 |
| Four on One Thirty | 4x130 | Converts to: | 4x5.12 |
| Four on One Forty | 4x140 | Converts to: | 4x5.51 |
| Four on One Fifty | 4x150 | Converts to: | 4x5.91 |
| Four on One Fifty Six | 4x156 | Converts to: | 4x6.14 |
| Four on One Sixty | 4x160 | Converts to: | 4x6.3 |
| Four on One Seventy | 4x170 | Converts to: | 4x6.69 |
| Common Reference | Millimeters | Converts | Inches |
|---|---|---|---|
| Five on Ninety Eight | 5x98 | Converts to: | 5x3.86 |
| Five on One Hundred | 5x100 | Converts to: | 5x3.94 |
| Five on Four | 5x101.6 | Converts to: | 5x4 |
| Five on One "O" Five | 5x105 | Converts to: | 5x4.13 |
| Five on One "O" Six | 5x106 | Converts to: | 5x4.17 |
| Five on One "O" Eight — or — Five on Four and a Quarter |
5x108 | Converts to: | 5x4.25 or 5x4 1/4 |
| Five on One Ten | 5x110 | Converts to: | 5x4.33 |
| Five on One Twelve | 5x112 | Converts to: | 5x4.41 |
| Five on One Fourteen Point Three — or — Five on Four and a Half |
5x114.3 | Converts to: | 5x4.5 or 5x4 1/2 |
| Five on One Fifteen | 5x115 | Converts to: | 5x4.52 |
| Five on One Eighteen | 5x118 | Converts to: | 5x4.65 |
| Five on One Twenty | 5x120 | Converts to: | 5x4.72 |
| Five on Four and Three Quarter | 5x120.7 | Converts to: | 5x4.75 or 5x4 3/4 |
| Five on Five — or — Five on One Twenty Seven |
5x127 | Converts to: | 5x5 |
| Five on One Twenty Eight | 5x128 | Converts to: | 5x5.04 |
| Five on One Thirty | 5x130 | Converts to: | 5x5.12 |
| Five on One Thirty Two | 5x132 | Converts to: | 5x5.2 |
| Five on One Thirty Five | 5x135 | Converts to: | 5x5.3 |
| Five on Five and a Half — or — Five on One Thirty Nine |
5x139.7 | Converts to: | 5x5.5 or 5x5 1/2 |
| Five on One Forty | 5x140 | Converts to: | 5x5.51 |
| Five on Six — or — Five on One Fifty Two |
5x152.4 | Converts to: | 5x6 |
| Five on One Fifty | 5x150 | Converts to: | 5x5.9 |
| Five on One Fifty Five | 5x155 | Converts to: | 5x6.1 |
| Five on One Sixty | 5x160 | Converts to: | 5x6.3 |
| Five on Six and a Half — or — Five on One Sixty Five |
5x165.1 | Converts to: | 5x6.5 or 5x6 1/2 |
| Five on One Seventy | 5x170 | Converts to: | 5x6.69 |
| Common Reference | Millimeters | Converts | Inches |
|---|---|---|---|
| Six on One Fourteen — or — Six on Four and a Half |
6x114.3 | Converts to: | 6x4.5 or 6x4 1/2 |
| Six on One Fifteen | 6x115 | Converts to: | 6x4.53 |
| Six on One Twenty | 6x120 | Converts to: | 6x4.72 |
| Six on One Twenty Five | 6x125 | Converts to: | 6x4.92 |
| Six on One Twenty Seven — or — Six on Five |
6x127 | Converts to: | 6x5 |
| Six on One Thirty | 6x130 | Converts to: | 6x5.1 |
| Six on One Thirty Two | 6x132 | Converts to: | 6x5.2 |
| Six on One Thirty Five | 6x135 | Converts to: | 6x5.3 |
| Six on One Thirty Nine Point Four | 6x139.4 | Converts to: | 6x5.49 |
| Six on Five and a Half — or — Six on One Thirty Nine |
6x139.7 | Converts to: | 6x5.5 or 6x5 1/2 |
| Six on Six and a Half — or — Six on One Sixty Five |
6x165.1 | Converts to: | 6x6.5 or 6x6 1/2 |
| Six on One Seventy | 6x170 | Converts to: | 6x6.69 |
| Six on One Eighty | 6x180 | Converts to: | 6x7.09 |
| Six on Two Hundred | 6x200 | Converts to: | 6x7.87 |
| Six on Two "O" Five | 6x205 | Converts to: | 6x8.07 |
| Six on Eight and Three Quarter — or — Six on Two Twenty Two |
6x222.25 | Converts to: | 6x8.75 |
| Common Reference | Millimeters | Converts | Inches |
|---|---|---|---|
| Seven on One Fifty | 7x150 | Converts to: | 7x5.9 |
| Seven on One Seventy | 7x170 | Converts to: | 7x6.69 |
| Seven on One Eighty | 7x180 | Converts to: | 7x7.09 |
| Common Reference | Millimeters | Converts | Inches |
|---|---|---|---|
| Eight on One Thirty Nine Point Seven | 8x139.7 | Converts to: | 8x5.5 |
| Eight on Six and a Half — or — Eight on One Sixty Five Point One |
8x165.1 | Converts to: | 8x6.5 or 8x6 1/2 |
| Eight on One Seventy | 8x170 | Converts to: | 8x6.69 |
| Eight on One Eighty | 8x180 | Converts to: | 8x7.09 |
| Eight on Two Hundred | 8x200 | Converts to: | 8x7.87 |
| Eight on Two Ten | 8x210 | Converts to: | 8x8.27 |
| Eight on Two Twenty Five | 8x225 | Converts to: | 8x8.86 |
| Eight on Two Seventy Five | 8x275 | Converts to: | 8x10.83 |
| Common Reference | Millimeters | Converts | Inches |
|---|---|---|---|
| Ten on Two Twenty Five | 10x225 | Converts to: | 10x8.86 |
| Ten on Two Eighty Five | 10x285 | Converts to: | 10x11.22 |
| Ten on Three Thirty Five | 10x335 | Converts to: | 10x13.19 |
This conversion chart covers the most common bolt patterns found in vehicles today, from compact cars to heavy-duty trucks. The first number in each measurement indicates the number of lug nuts or bolts on your wheel (ranging from 3 to 8), while the second number represents the diameter of the circle formed by these lug nuts or bolts (measured in either millimeters or inches). Having this information readily available helps ensure accurate wheel fitment and saves time during the wheel selection process.
Remember, whether you're looking at metric or standard measurements, the physical bolt pattern remains the same - it's just expressed differently. This understanding is essential for making informed decisions when purchasing new wheels for your vehicle.
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