mm to Inch Conversion Chart mm Inches (approximate) Simple Conversion To the nearest 1/32 inch Decimal 1 1/32 1/32 0.04 2 1/16 3/32 0.08 3 1/8 4/32 0.12 4 3/16 5/32 0.16 5 3/16 6/32 0.20 6 1/4 8/32 0.24 7 1/4 9/32 0.28 8 5/16 10/32 0.31 9 3/8 11/32 0.35 10 3/8 13/32 0.39 11 7/16 14/32 0.43 12 1/2 15/32 0.47 13 1/2 16/32 0.51 14 9/16 18/32 0.55 15 9/16 19/32 0.59 16 5/8 20/32 0.63 17 11/16 21/32 0.67 18 11/16 23/32 0.71 19 3/4 24/32 0.75 20 13/16 25/32 0.79 21 13/16 26/32 0.83 22 7/8 28/32 0.87 23 7/8 29/32 0.91 24 15/16 30/32 0.94 25 1 31/32 0.98 26 11/32 1 1/32 1.02 27 1 1/16 1 2/32 1.06 28 1 1/8 1 3/32 1.10 29 1 1/8 1 5/32 1.14 30 1 3/16 1 6/32 1.18 31 1 1/4 1 7/32 1.22 32 1 1/4 1 8/32 1.26 33 1 5/16 1 10/32 1.30 34 1 5/16 1 11/32 1.34 35 1 6/16 1 12/32 1.38 36 1 7/16 1 13/32 1.42 37 1 7/16 1 15/32 1.46 38 1 8/16 1 16/32 1.50 39 1 9/16 1 17/32 1.54 40 1 9/16 1 18/32 1.57 41 1 10/16 1 20/32 1.61 42 1 10/16 1 21/32 1.65 43 1 11/16 1 22/32 1.69 44 1 12/16 1 23/32 1.73 45 1 12/16 1 25/32 1.77 46 1 13/16 1 26/32 1.81 47 1 14/16 1 27/32 1.85 48 1 14/16 1 28/32 1.89 49 1 15/16 1 30/32 1.93 50 1 15/16 1 31/32 1.97 51 2 2 2.01