Metric conversion table
Primary source
Verbatim text below is from the Electronic Code of Federal Regulations (eCFR), a public-domain U.S. government work. Always verify the current version with the eCFR before relying on it for any legal matter.
Full Text
Inches Millimeters(mm) 1⁄8 equals 3.2 1⁄4 equals 6.4 3⁄8 equals 9.5 1⁄2 equals 12.7 5⁄8 equals 15.9 3⁄4 equals 19.1 7⁄8 equals 22.2 1 equals 25.4 11⁄4 equals 31.8 11⁄2 equals 38.1 13⁄4 equals 44.5 2 equals 50.8 3 equals 76.2 4 equals 101.6
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