Fraction	inch	mm
1/256	.0039	0.10
1/128	.0078	0.20
1/64	.0156	0.40
1/32	.0313	0.79
3/64	.0469	1.19
1/16	.0625	1.59
3/32	.0938	2.38
7/64	.1094	2.78
1/8	.1250	3.18
9/64	.1406	3.57
5/32	.1563	3.97
11/64	.1719	4.37
3/16	.1875	4.76
13/64	.2031	5.16
7/32	.2188	5.56
15/64	.2344	5.95
1/4	.2500	6.35
5/16	.3125	7.94
21/64	.3281	8.33
11/32	.3438	8.73
23/64	.3594	9.13
25/64	.3906	9.92
13/32	.4063	10.32
27/64	.4219	10.72
7/16	.4375	11.11
29/64	.4531	11.51
15/32	.4688	11.91
31/64	.4844	12.30
1/2	.5000	12.70
33/64	.5156	13.10
17/32	.5313	13.49
35/64	.5469	13.89
9/16	.5625	14.29
37/64	.5781	14.68
19/32	.5938	15.08
39/64	.6094	15.48
5/8	.6250	15.88
41/64	.6406	16.27
21/32	.6563	16.67
43/64	.6719	17.07
11/16	.6875	17.46
45/64	.7031	17.86
23/32	.7188	18.26
47/64	.7344	18.65
3/4	.7500	19.05
49/64	.7656	19.45
25/32	.7813	19.84
51/64	.7969	20.24
13/16	.8125	20.64
53/64	.8281	21.03
27/32	.8438	21.43
55/64	.8594	21.83
7/8	.8750	22.23
57/64	.8906	22.62
29/32	.9063	23.02
59/64	.9219	23.42
15/16	.9375	23.81
61/64	.9531	24.21
61/64	.9531	24.21
31/32	.9688	24.61
63/64	.9844	25.00
1	1.0000	25.40

Last Updated: 20 February 2015