Convert Inches To Millimeters
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This measurement conversion is based on a simple rule: 1 in = 25.4 mm An inch is the name of a unit of length in a number of different systems, including Imperial units, and United States customary units. There are 36 inches in a yard and 12 inches in a foot.
The millimetre (American spelling: millimeter), symbol mm, is a unit of length in the metric system, equal to one thousandth of a metre, which is the SI base unit of length.