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Bolt pattern converter: millimeters and inches

A bolt pattern is the number of lug holes and the diameter of the circle they sit on, like 5x114.3 mm, which is the same as 5x4.5 inches. Enter a pattern in either unit.

Common bolt patterns

MillimetersInches
4x1004x3.94
4x1084x4.25
4x114.34x4.5
5x1005x3.94
5x1085x4.25
5x1105x4.33
5x1125x4.41
5x114.35x4.5
5x1155x4.53
5x1205x4.72
5x1275x5
5x1305x5.12
5x1355x5.31
5x139.75x5.5
5x1505x5.91
6x114.36x4.5
6x1206x4.72
6x1276x5
6x1356x5.31
6x139.76x5.5
8x165.18x6.5
8x1708x6.69
8x1808x7.09

Inch values are rounded to two decimals.