CONVERSION TABLE inch decimal mm 1/64 0.015625 0.3969 1/32 0.031250 0.7938 3/64 0.046875 1.1906 1/16 0.062500 1.5875 5/64 0.078125 1.9844 3/32 0.093750 2.3812 7/64 0.109375 2.7781 1/8 0.125000 3.1750 9/64 0.140625 3.5719 5/32 0.156250 3.9688 11/64 0.171875 4.3656 3/16 0.187500 4.7625 13/64 0.203125 5.1594 7/32 0.218750 5.5562 15/64 0.234375 5.9531 1/4 0.250000 6.3500 17/64 0.265625 6.7469 9/32 0.281250 7.1438 19/64 0.296875 7.5406 5/16 0.312500 7.9375 21/64 0.328125 8.3344 11/32 0.343750 8.7312 inch decimal mm 23/64 0.359375 9.1281 3/8 0.375000 9.5250 25/64 0.390625 9.9219 13/32 0.406250 10.3188 27/64 0.421875 10.7156 7/16 0.437500 11.1125 29/64 0.453125 11.5094 15/32 0.468750 11.9062 31/64 0.484375 12.3031 1/2 0.500000 12.7000 33/64 0.515625 13.0969 17/32 0.531250 13.4938 35/64 0.546875 13.8906 9/16 0.562500 14.2875 37/64 0.578125 14.6844 19/32 0.593750 15.0812 39/64 0.609375 15.4781 5/8 0.625000 15.8750 41/64 0.640625 16.2719 21/32 0.656250 16.6688 43/64 0.671875 17.0656 11/16 0.687500 17.4625 inch decimal mm 45/64 0.703125 17.8594 23/32 0.718750 18.2562 47/64 0.734375 18.6531 3/4 0.750000 19.050 49/64 0.765625 19.4469 25/32 0.781250 19.8437 51/64 0.796875 20.2406 13/16 0.812500 20.6375 53/64 0.828125 21.0344 27/32 0.843750 21.4312 55/64 0.859375 21.8281 7/8 0.875000 22.2250 57/64 0.890625 22.6219 29/32 0.906250 23.0188 59/64 0.921875 23.4156 15/16 0.937500 23.8125 61/64 0.953125 24.2094 31/32 0.96750 24.6062 63/64 0.984375 25.0031 1 1.000000 25.4000