Millimeter to Inches Conversion Chart

It's quite common to see the size of jewelry pieces in millimeters (MM), although many people want to know the size in inches. If you would like to know inches instead of millimeters, a straightforward formula can help you figure it out:

Simply take the number of millimeters and divide by 25.4. You will then get a decimal that can be converted to an inch. Example: 40 millimeters is approximately 1.6 inches, calculated as 40 ÷ 25.4 = 1.57 inch.

The following chart demonstrates common conversions for easy reference:

1 Millimeter - 0.04 Inches 10 Millimeters - 0.39 Inches 2 Millimeters - 0.08 Inches 3 Millimeters - 0.12 Inches 4 Millimeters - 0.16 Inches 5 Millimeters - 0.20 Inches 6 Millimeters - 0.24 Inches 7 Millimeters - 0.28 Inches 8 Millimeters - 0.31 Inches 9 Millimeters - 0.35 Inches 11 Millimeters - 0.43 Inches 12 Millimeters - 0.47 Inches 13 Millimeters - 0.51 Inches 14 Millimeters - 0.55 Inches 15 Millimeters - 0.59 Inches 16 Millimeters - 0.63 Inches 17 Millimeters - 0.67 Inches 18 Millimeters - 0.71 Inches 19 Millimeters - 0.75 Inches 20 Millimeters - 0.79 Inches 21 Millimeters - 0.83 Inches 22 Millimeters - 0.87 Inches 23 Millimeters - 0.91 Inches 24 Millimeters - 0.94 Inches 25 Millimeters - 0.98 Inches 26 Millimeters - 1.02 Inches 27 Millimeters - 1.06 Inches 28 Millimeters - 1.10 Inches 29 Millimeters - 1.14 Inches 30 Millimeters - 1.18 Inches 31 Millimeters - 1.22 Inches 32 Millimeters - 1.26 Inches 33 Millimeters - 1.30 Inches 34 Millimeters - 1.34 Inches 35 Millimeters - 1.38 Inches 36 Millimeters - 1.42 Inches 37 Millimeters - 1.46 Inches 38 Millimeters - 1.50 Inches 39 Millimeters - 1.54 Inches 40 Millimeters - 1.57 Inches