Posted on September 20, 2011 by mike
	  2 Comments
 

 
I need one of these posters for my shop. From what I hear you can get yours at McMaster or MSC, although I haven’t found a full size one yet. But I did stumble across this book, and it looks good: Home Machinists Handbook
Here’s an online conversion table that can help in a pinch, too.
| Millimeters | 
Fractions | 
Inches | 
 
| .397 | 
1/64 | 
.015625 | 
 
| .794 | 
1/32 | 
.03125 | 
 
| 1.191 | 
3/64 | 
.046875 | 
 
| 1.588 | 
1/16 | 
.0625 | 
 
| 1.984 | 
5/64 | 
.078125 | 
 
| 2.381 | 
3/32 | 
.09375 | 
 
| 2.778 | 
7/64 | 
.109375 | 
 
| 3.175 | 
1/8 | 
.125 | 
 
| 3.572 | 
9/64 | 
.140625 | 
 
| 3.969 | 
5/32 | 
.15625 | 
 
| 4.366 | 
11/64 | 
.171875 | 
 
| 4.762 | 
3/16 | 
.1875 | 
 
| 5.159 | 
13/64 | 
.203125 | 
 
| 5.556 | 
7/32 | 
.21875 | 
 
| 5.953 | 
15/64 | 
.234375 | 
 
| 6.350 | 
1/4 | 
.25 | 
 
| 6.747 | 
17/64 | 
.265625 | 
 
| 7.144 | 
9/32 | 
.28125 | 
 
| 7.541 | 
19/64 | 
.296875 | 
 
| 7.938 | 
5/16 | 
.3125 | 
 
| 8.334 | 
21/64 | 
.328125 | 
 
| 8.731 | 
11/32 | 
.34375 | 
 
| 9.128 | 
23/64 | 
.359375 | 
 
| 9.525 | 
3/8 | 
.375 | 
 
| 9.922 | 
25/64 | 
.390625 | 
 
| 10.319 | 
13/32 | 
.40625 | 
 
| 10.716 | 
27/64 | 
.421875 | 
 
| 11.112 | 
7/16 | 
.4375 | 
 
| 11.509 | 
29/64 | 
.453125 | 
 
| 11.906 | 
15/32 | 
.46875 | 
 
| 12.303 | 
31/64 | 
.484375 | 
 
| 12.700 | 
1/2 | 
.5 | 
 
 
 
 | 
| Millimeters | 
Fractions | 
Inches | 
 
| 13.097 | 
33/64 | 
.515625 | 
 
| 13.494 | 
17/32 | 
.53125 | 
 
| 13.891 | 
35/64 | 
.546875 | 
 
| 14.288 | 
9/16 | 
.5625 | 
 
| 14.684 | 
37/64 | 
.578125 | 
 
| 15.081 | 
19/32 | 
.59375 | 
 
| 15.478 | 
39/64 | 
.609375 | 
 
| 15.875 | 
5/8 | 
.625 | 
 
| 16.272 | 
41/64 | 
.640625 | 
 
| 16.669 | 
21/32 | 
.65625 | 
 
| 17.066 | 
43/64 | 
.671875 | 
 
| 17.462 | 
11/16 | 
.6875 | 
 
| 17.859 | 
45/64 | 
.703125 | 
 
| 18.256 | 
23/32 | 
.71875 | 
 
| 18.653 | 
47/64 | 
.734375 | 
 
| 19.050 | 
3/4 | 
.75 | 
 
| 19.447 | 
49/64 | 
.765625 | 
 
| 19.844 | 
25/32 | 
.78125 | 
 
| 20.241 | 
51/64 | 
.796875 | 
 
| 20.638 | 
13/16 | 
.8125 | 
 
| 21.034 | 
53/64 | 
.828125 | 
 
| 21.431 | 
27/32 | 
.84375 | 
 
| 21.828 | 
55/64 | 
.859375 | 
 
| 22.225 | 
7/8 | 
.875 | 
 
| 22.622 | 
57/64 | 
.890625 | 
 
| 23.019 | 
29/32 | 
.90625 | 
 
| 23.416 | 
59/64 | 
.921875 | 
 
| 23.812 | 
15/16 | 
.9375 | 
 
| 24.209 | 
61/64 | 
.953125 | 
 
| 24.606 | 
31/32 | 
.96875 | 
 
| 25.003 | 
63/64 | 
.984375 | 
 
| 25.400 | 
1 | 
1.000 | 
 
 
 
 |