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Decimal to Fractions Conversion ChartLast updated: December 16, 2004 ©By: John T. Blair (WA4OHZ) 1133 Chatmoss Dr., Va. Beach, Va. 23464; (757) 495-8229 The following is a chart of fraction to decimal equivalents. When mic-ing a bolt I needed to convert from the decimal readout of the micrometer to the fractional values to purchase new bolts. Since I never had the chart or a calculator when I needed it, I generated one. So again I'm passing it along. Hint: My micrometer came in a nice wooden case, so to ensure I always had these charts available, I reduced them on a photocopy machine. Then to keep them from getting torn or soiled, I laminated them to the wooden case with clear shelf paper. Now they are always with my micrometer and thread pitch gauge!
8ths 32nds 64ths 1 - .125 1 - .03125 1 - .015625 2 - .25 3 - .09375 3 - .046875 3 - .375 5 - .15625 5 - .078125 4 - .500 7 - .21875 7 - .109375 5 - .625 9 - .28125 9 - .140625 6 - .750 11 - 34375 11 - .171875 7 - .875 13 - 40625 13 - .203125 15 - .46875 15 - .234375 16ths 17 - .53125 17 - .265625 1 - .0625 19 - .59375 19 - .296875 3 - .1875 21 - .65625 21 - .328125 5 - .3125 23 - .71875 23 - .359375 7 - .4375 25 - .78125 25 - .390625 9 - .5625 27 - .84375 27 - .421875 11 - .6875 29 - .90625 29 - .453125 13 - .8125 31 - .96875 31 - .484375 15 - .9375 33 - .515625 35 - .546875 37 - .578125 39 - .609375 41 - .640625 43 - .671875 45 - .703125 47 - .734375 49 - .765625 51 - .796875 53 - .828125 55 - .859375 57 - .890625 59 - .921875 61 - .953125 63 - .984375 Return to the Index of Tech. articles |