Fix My Computer, Mark! - Conversion Table: fractional inches, decimal inches, mm
This table of equivalents should be useful for drill bit sizes, wrench and socket sizes, etc.
Inch/mm equivalents table
inch/64 |
Fractional inch |
Decimal inch |
mm |
1 |
1/64 |
0.015625 |
0.396875 |
2 |
1/32 |
0.03125 |
0.79375 |
3 |
3/64 |
0.046875 |
1.190625 |
4 |
1/16 |
0.0625 |
1.5875 |
5 |
5/64 |
0.078125 |
1.984375 |
6 |
3/32 |
0.09375 |
2.38125 |
7 |
7/64 |
0.109375 |
2.778125 |
8 |
1/8 |
0.125 |
3.175 |
9 |
9/64 |
0.140625 |
3.571875 |
10 |
5/32 |
0.15625 |
3.96875 |
11 |
11/64 |
0.171875 |
4.365625 |
12 |
3/16 |
0.1875 |
4.7625 |
13 |
13/64 |
0.203125 |
5.159375 |
14 |
7/32 |
0.21875 |
5.55625 |
15 |
15/64 |
0.234375 |
5.953125 |
16 |
1/4 |
0.25 |
6.35 |
17 |
17/64 |
0.265625 |
6.746875 |
18 |
9/32 |
0.28125 |
7.14375 |
19 |
19/64 |
0.296875 |
7.540625 |
20 |
5/16 |
0.3125 |
7.9375 |
21 |
21/64 |
0.328125 |
8.334375 |
22 |
11/32 |
0.34375 |
8.73125 |
23 |
23/64 |
0.359375 |
9.128125 |
24 |
3/8 |
0.375 |
9.525 |
25 |
25/64 |
0.390625 |
9.921875 |
26 |
13/32 |
0.40625 |
10.31875 |
27 |
27/64 |
0.421875 |
10.715625 |
28 |
7/16 |
0.4375 |
11.1125 |
29 |
29/64 |
0.453125 |
11.509375 |
30 |
15/32 |
0.46875 |
11.90625 |
31 |
31/64 |
0.484375 |
12.303125 |
32 |
1/2 |
0.5 |
12.7 |
33 |
33/64 |
0.515625 |
13.096875 |
34 |
17/32 |
0.53125 |
13.49375 |
35 |
35/64 |
0.546875 |
13.890625 |
36 |
9/16 |
0.5625 |
14.2875 |
37 |
37/64 |
0.578125 |
14.684375 |
38 |
19/32 |
0.59375 |
15.08125 |
39 |
39/64 |
0.609375 |
15.478125 |
40 |
5/8 |
0.625 |
15.875 |
41 |
41/64 |
0.640625 |
16.271875 |
42 |
21/32 |
0.65625 |
16.66875 |
43 |
43/64 |
0.671875 |
17.065625 |
44 |
11/16 |
0.6875 |
17.4625 |
45 |
45/64 |
0.703125 |
17.859375 |
46 |
23/32 |
0.71875 |
18.25625 |
47 |
47/64 |
0.734375 |
18.653125 |
48 |
3/4 |
0.75 |
19.05 |
49 |
49/64 |
0.765625 |
19.446875 |
50 |
25/32 |
0.78125 |
19.84375 |
51 |
51/64 |
0.796875 |
20.240625 |
52 |
13/16 |
0.8125 |
20.6375 |
53 |
53/64 |
0.828125 |
21.034375 |
54 |
27/32 |
0.84375 |
21.43125 |
55 |
55/64 |
0.859375 |
21.828125 |
56 |
7/8 |
0.875 |
22.225 |
57 |
57/64 |
0.890625 |
22.621875 |
58 |
29/32 |
0.90625 |
23.01875 |
59 |
59/64 |
0.921875 |
23.415625 |
60 |
15/16 |
0.9375 |
23.8125 |
61 |
61/64 |
0.953125 |
24.209375 |
62 |
31/32 |
0.96875 |
24.60625 |
63 |
63/64 |
0.984375 |
25.003125 |
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