Machinery's Handbook, 31st Edition
Linear Measure And Conversion Factors
2839
Table 6. Feet to Inches Conversion
feet
inch feet
inch feet inch feet inch feet
inch feet
inch
feet
inch
100 1200 10 120 1 200 2400 20 240 2 300 3600 30 360 3 400 4800 40 480 4 500 6000 50 600 5 600 7200 60 720 6 700 8400 70 840 7 800 9600 80 960 8
12 24 36 48 60 72 84 96
0.1 1.2 0.01 0.12 0.001 0.012 0.0001 0.0012 0.2 2.4 0.02 0.24 0.002 0.024 0.0002 0.0024 0.3 3.6 0.03 0.36 0.003 0.036 0.0003 0.0036 0.4 4.8 0.04 0.48 0.004 0.048 0.0004 0.0048 0.05 0.6 0.005 0.06 0.0005 0.006 0.6 7.2 0.06 0.72 0.006 0.072 0.0006 0.0072 0.7 8.4 0.07 0.84 0.007 0.084 0.0007 0.0084 0.8 9.6 0.08 0.96 0.008 0.096 0.0008 0.0096 0.9 10.8 0.09 1.08 0.009 0.108 0.0009 0.0108 0.5 6
900 10800 90 1080 9 108
1000 12000 100 1200 10 120 1 12 0.012 Table 7. Fractional and Decimal Inches to Millimeters, Exact a Values Fractional Inch Decimal Inches Millimeters Fractional Inches Decimal Inches Millimeters 1/64 0.015625 0.396875 0.511811024 13 1/32 0.03125 0.79375 33/64 0.515625 13.096875 0.039370079 1 17/32 0.53125 13.49375 3/64 0.046875 1.190625 35/64 0.546875 13.890625 1/16 0.0625 1.5875 0.551181102 14 5/64 0.078125 1.984375 9/16 0.5625 14.2875 0.078740157 2 37/64 0.578125 14.684375 1/12 0.08 33 b 2.11 66 7/12 0.58 33 14.81 66 3/32 0.09375 2.38125 0.590551181 15 7/64 0.109375 2.778125 19/32 0.59375 15.08125 0.118110236 3 39/64 0.609375 15.478125 1/8 0.125 3.175 5/8 0.625 15.875 9/64 0.140625 3.571875 0.62992126 16 5/32 0.15625 3.96875 41/64 0.640625 16.271875 0.157480315 4 21/32 0.65625 16.66875 1/6 0.1 66 4.2 33 2/3 0. 66 16.9 33 11/64 0.171875 4.365625 0.669291339 17 3/16 0.1875 4.7625 43/64 0.671875 17.065625 0.196850394 5 11/16 0.6875 17.4625 13/64 0.203125 5.159375 45/64 0.703125 17.859375 7/32 0.21875 5.55625 0.708661417 18 15/64 0.234375 5.953125 23/32 0.71875 18.25625 0.236220472 6 47/64 0.734375 18.653125 1/4 0.25 6.35 0.748031496 19 17/64 0.265625 6.746875 3/4 0.75 19.05 0.275590551 7 49/64 0.765625 19.446875 9/32 0.28125 7.14375 25/32 0.78125 19.84375 19/64 0.296875 7.540625 0.787401575 20 5/16 0.3125 7.9375 51/64 0.796875 20.240625 0.31496063 8 13/16 0.8125 20.6375 21/64 0.328125 8.334375 0.826771654 21 1/3 0. 33 8.4 66 53/64 0.828125 21.034375 11/32 0.34375 8.73125 27/32 0.84375 21.43125 0.354330709 9 55/64 0.859375 21.828125 23/64 0.359375 9.128125 0.866141732 22 3/8 0.375 9.525 7/8 0.875 22.225 25/64 0.390625 9.921875 57/64 0.890625 22.621875 0.393700787 10 0.905511811 23 13/32 0.40625 10.31875 29/32 0.90625 23.01875 5/12 0.41 66 10.58 33 11/12 0.91 66 23.28 33 27/64 0.421875 10.715625 59/64 0.921875 23.415625 0.433070866 11 15/16 0.9375 23.8125 7/16 0.4375 11.1125 0.94488189 24 29/64 0.453125 11.509375 61/64 0.953125 24.209375 15/32 0.46875 11.90625 31/32 0.96875 24.60625 0.472440945 12 0.984251969 25 31/64 0.484375 12.303125 63/64 0.984375 25.003125 1/2 0.5 12.7 0.1 1.2 0.01 0.12 0.001 a Reading left to right from all “Fractional” and “Decimal Inches” columns to “Millimeters” columns: conversion values are exact. Reading right to left from the “Millimeters” columns: whole number millimeters conversions to “Decimal Inches” are rounded to 9 decimal places. b A bar over a group of digits indicates they repeat indefinitely; for example, 0.08 33 = 0.08333...
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