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Quinco Tool Products
Conversion Chart
Fractions-Decimals-Metric Equivalent Chart
Inch Decimal MM Inch Decimal MM Inch Decimal MM
1/64 .0156 .396 23/64 .3543 9.000 11/16 .6875 17.462
  .0196 .500   .3593 9.128   .6887 17.500
1/32 .0312 .793   .3740 9.500 45/64 .7031 17.859
  .0393 1.000 3/8 .3750 9.525   .7086 18.000
3/64 .0468 1.190 25/64 .3906 9.921 23/32 .7187 18.256
  .0590 1.500   .3937 10.000   .7283 18.500
1/16 .0625 1.587 13/32 .4062 10.318 47/64 .7343 18.653
5/64
 .0781 1.984   .4133 10.500   .7480 19.000
  .0787 2.000 27/64 .4218 10.715 3/4 .7500 19.050
3/32 .0937 2.381   .4330 11.000 49/64 .7656 19.446
  .0984 2.500 7/16 .4375 11.112   .7677 19.500
7/64 .1093 2.778   .4527 11.500 25/32 .7812 19.843
  .1181 3.000 29/64 .4532 11.509   .7874 20.000
1/8 .1250 3.175 15/32 .4687 11.906 51/64 .7968 20.240
  .1377 3.500   .4724 12.000   .8070 20.500
9/64 .1406 3.571 31/64 .4843 12.303 13/16 .8125 20.637
5/32 .1562 3.968   .4921 12.500   .8267 21.000
  .1574 4.000 1/2 .500 12.700 53/64 .8281 21.034
11/64 .1718 4.365   5.118 13.000 27/32 .8437 21.431
  .1771 4.500 33/64 .5156 13.096   .8464 21.500
3/16 .1875 4.762 17/32 .5312 13.493 55/64 .8593 21.828
  .1968 5.000   .5314 13.500   .8661 22.000
13/64 .2031 5.159 35/64 .5468 13.890 7/8 .8750 22.225
  .2165 5.500   .5511 14.000   .8858 22.500
7/32 .2187 5.953 9/16 .5625 12.287 57/64 .8906 22.621
15/64 .2343 6.000   .5708 14.500   .9055 23.000
  .2362 6.350 37/64 .5781 14.684 29/32 .9062 23.018
1/4 .2500 6.500   .5905 15.000 59/64 .9218 23.415
  .2559 6.746 19/32 .5937 15.081   .9251 23.500
17/64 .2656 7.000 39/64 .6093 15.478 15/16 .9375 23.812
  .2755 7.143   .6102 15.500   .9448 24.000
9/32 .2812 7.500 5/8 .6250 15.875 61/64 .9531 24.209
19/64 .2968 7.540   .6299 16.000   .9645 24.500
5/16 .3125 7.937 41/64 .6406 16.271 31/32 .9687 24.606
  .3149 8.000   .6496 16.500   .9842 25.000
21/64 .3281 8.334 21/32 .6562 16.668 63/64 .9843 25.003
  .3346 8.500   .6692 17.000 1 1.000 25.400
11/32 .3437 8.731 43/64 .6718 17.065   1.0039 25.500
21000 Hubbell Oak Park, Michigan 48237 - (800) 521-1910 - Fax: (800) 468-4730 Quinco Tool Products Company