Inch to Metric Conversion Chart Inches mm Inches mm Inches mm Inches mm 1/32 3/64 1/16 5/64 3/32 7/64 1/8 9/64 0.79 1.19 1.59 1.98 2.38 2.78 3.18 3.57 1 1/16 1 3/32 1 1/8 1 5/32 1 3/16 1 7/32 1 1/4 1 9/32 26.99 27.78 28.58 29.37 30.16 30.96 31.75 32.54 3 1/16 3 3/32 3 1/8 3 5/32 3 3/16 3 7/32 3 1/4 3 9/32 77.79 78.58 79.38 80.17 80.96 81.76 82.55 83.34 5 1/16 5 3/32 5 1/8 5 5/32 5 1/8 5 5/32 5 3/16 5 7/32 128.59 129.38 130.18 130.97 130.18 130.97 131.76 132.56 5/32 11/64 3/16 13/64 7/32 15/64 1/4 17/64 3.97 4.37 4.76 5.16 5.56 5.95 6.35 6.75 1 5/16 1 11/32 1 3/8 1 13/32 1 7/16 1 15/32 1 1/2 1 17/32 33.34 34.13 34.93 35.72 36.51 37.31 38.10 38.89 3 5/16 3 11/32 3 3/8 3 13/32 3 7/16 3 15/32 3 1/2 3 17/32 84.14 84.93 85.73 86.52 87.31 88.11 88.90 89.69 5 1/4 5 9/32 5 5/16 5 11/32 5 3/8 5 13/32 5 7/16 5 15/32 133.35 134.14 134.94 135.73 136.53 137.32 138.11 138.91 9/32 19/64 5/16 21/64 11/32 23/64 3/8 25/64 7.14 7.54 7.94 8.33 8.73 9.13 9.53 9.92 1 9/16 1 19/32 1 5/8 1 21/32 1 11/16 1 23/32 1 3/4 1 25/32 39.69 40.48 41.28 42.07 42.86 43.66 44.45 45.24 3 9/16 3 19/32 3 5/8 3 21/32 3 11/16 3 23/32 3 3/4 3 25/32 90.49 91.28 92.08 92.87 93.66 94.46 95.25 96.04 5 1/2 5 17/32 5 9/16 5 19/32 5 5/8 5 21/32 5 11/16 5 23/32 139.70 140.49 141.29 142.08 142.88 143.67 144.66 145.26 13/32 27/64 7/16 29/64 15/22 31/64 1/2 33/64 10.32 10.72 11.11 11.51 11.91 12.30 12.70 13.10 1 13/16 1 27/32 1 7/8 1 29/32 1 15/16 1 31/32 2 2 1/32 46.04 46.83 47.63 48.42 49.21 50.01 50.80 51.59 3 13/16 3 27/32 3 7/8 3 29/32 3 15/16 3 31/32 4 4 1/32 96.84 97.63 98.43 99.22 100.01 100.81 101.60 102.39 5 3/4 5 25/32 5 13/16 5 27/32 5 7/8 5 29/32 5 15/16 5 31/32 146.05 146.84 147.64 148.43 149.23 150.02 150.81 151.61 17/32 35/64 9/16 37/64 19/32 39/64 5/8 41/64 13.49 13.89 14.29 14.68 15.08 15.48 15.88 16.27 2 1/16 2 3/32 2 1/8 2 5/32 2 3/16 2 7/32 2 1/4 2 9/32 52.39 53.18 53.98 54.77 55.56 56.36 57.15 57.94 4 1/16 4 3/32 4 1/8 4 5/32 4 3/16 4 7/32 4 1/4 4 9/32 103.19 103.98 104.78 105.57 106.36 107.16 107.95 108.74 6 6 1/16 6 1/8 6 3/16 6 1/4 6 5/16 6 3/8 6 7/16 152.40 153.99 155.58 157.16 158.75 160.34 161.93 163.51 21/32 43/64 11/16 45/64 23/32 47/64 3/4 49/64 16.67 17.07 17.46 17.86 18.26 18.65 19.05 19.45 2 5/16 2 11/32 2 3/8 2 13/32 2 7/16 2 15/32 2 1/2 2 17/32 58.74 59.53 60.33 61.12 61.91 62.71 63.50 64.29 4 5/16 4 11/32 4 3/8 4 13/32 4 7/16 4 15/32 4 1/2 4 17/32 109.54 110.33 111.13 111.92 112.71 113.51 114.30 115.09 6 1/2 6 9/16 6 5/8 6 11/16 6 3/4 6 13/16 6 7/8 6 15/16 165.10 166.69 168.28 169.86 171.45 173.04 174.63 176.21 25/32 51/64 13/16 53/64 27/32 55/64 7/8 57/64 19.84 20.24 20.64 21.03 21.43 21.83 22.23 22.62 2 9/16 2 19/32 2 5/8 2 21/32 2 11/16 2 23/32 2 3/4 2 25/32 65.09 65.88 66.68 67.47 68.26 69.06 69.85 70.64 4 9/16 4 19/32 4 5/8 4 21/32 4 11/16 4 23/32 4 3/4 4 25/32 115.89 116.68 117.48 118.27 119.06 119.86 120.65 121.44 7 7 1/16 7 1/8 7 3/16 7 1/4 7 5/16 7 3/8 7 7/16 177.80 179.39 180.98 182.56 184.15 185.74 178.33 188.91 29/32 59/64 15/16 61/64 31/32 63/64 1 1 1/32 23.02 23.42 23.81 24.21 24.61 25.00 25.40 26.19 2 13/16 2 27/32 2 7/8 2 29/32 2 15/16 2 31/32 3 3 1/32 71.44 72.23 73.03 73.82 74.61 75.41 76.20 76.99 4 13/16 4 27/32 4 7/8 4 29/32 4 15/16 4 31/32 5 5 1/32 122.24 123.03 123.83 124.62 125.41 126.21 127.00 127.79 7 1/2 7 9/16 7 5/8 7 11/16 7 3/4 7 13/16 7 7/8 8 190.50 192.09 193.68 195.26 196.85 198.44 200.03 203.20