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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
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