Conversion Chart - Decimal and Millimeter Equivalents of Fractions
| Fractions | ||
| (In.) | Decimals | Millimeters |
| 1/64 | .015625 | .397 |
| 1/32 | .03125 | .794 |
| 3/64 | .046875 | 1.191 |
| 1/16 | .0625 | 1.588 |
| 5/64 | .078125 | 1.984 |
| 3/32 | .09375 | 2.381 |
| 7/64 | .109375 | 2.778 |
| 1/8 | .125 | 3.175 |
| 9/64 | .140625 | 3.572 |
| 5/32 | .15625 | 3.969 |
| 11/64 | .171875 | 4.366 |
| 3/16 | .1875 | 4.763 |
| 13/64 | .203125 | 5.159 |
| 7/32 | .21875 | 5.556 |
| 15/64 | .234375 | 5.953 |
| 1/4 | .250 | 6.350 |
| 17/64 | .265625 | 6.747 |
| 9/32 | .28125 | 7.144 |
| 19/64 | .296875 | 7.541 |
| 5/16 | .3125 | 7.938 |
| 21/64 | .328125 | 8.334 |
| 11/32 | .34375 | 8.731 |
| 23/64 | .359375 | 9.128 |
| 3/8 | .375 | 9.525 |
| 25/64 | .390625 | 9.922 |
| 13/32 | .40625 | 10.319 |
| 27/64 | .421875 | 10.716 |
| 7/16 | .4375 | 11.113 |
| 29/64 | .453125 | 11.509 |
| 15/32 | .46875 | 11.906 |
| 31/64 | .484375 | 12.303 |
| 1/2 | .500 | 12.700 |
| 33/64 | .515625 | 13.097 |
| 17/32 | .53125 | 13.494 |
| 35/64 | .546875 | 13.891 |
| 9/16 | .5625 | 14.288 |
| 37/64 | .578125 | 14.684 |
| 19/32 | .59375 | 15.081 |
| 39/64 | .609375 | 15.478 |
| 5/8 | .625 | 15.875 |
| 41/64 | .640625 | 16.272 |
| 21/32 | .65625 | 16.669 |
| 43/64 | .671875 | 17.066 |
| 11/16 | .6875 | 17.463 |
| 45/64 | .703125 | 17.859 |
| 23/32 | .71875 | 18.256 |
| 47/64 | .734375 | 18.653 |
| 3/4 | .750 | 19.050 |
| 49/64 | .765625 | 19.447 |
| 25/32 | .78125 | 19.844 |
| 51/64 | .796875 | 20.241 |
| 13/16 | .8125 | 20.638 |
| 53/64 | .828125 | 21.034 |
| 27/32 | .84375 | 21.431 |
| 55/64 | .859375 | 21.828 |
| 7/8 | .875 | 22.225 |
| 57/64 | .890625 | 22.622 |
| 29/32 | .90625 | 23.019 |
| 59/64 | .921875 | 23.416 |
| 15/16 | .9375 | 23.813 |
| 61/64 | .953125 | 24.209 |
| 31/32 | .96875 | 24.606 |
| 63/64 | .984375 | 25.003 |
| 1 | 1.000 | 25.400 |