mm inch inch(fraction) 1 mm = 0.0393701 inch
-- ------ -------------- 1 in = 25.4 mm
1 = 0.0394
1.5875 = 0.0625 1/16
2 = 0.0787
3 = 0.1181
3.1750 = 0.1250 1/8
4 = 0.1575
4.7625 = 0.1875 3/16
5 = 0.1969
6 =
0.2362 \
6.3500 = 0.2500 1/4
/not the same
7 = 0.2756
7.9375 = 0.3125 5/16
\same
8 =
0.3150 /
9 = 0.3543
9.5250 = 0.3750 3/8
10 = 0.3937
11 = 0.4331 \
11.1125 = 0.4375 7/16
/same
12 = 0.4724
12.7000 = 0.5000 1/2
\same (barely)
13 = 0.5118 /
14 = 0.5512 \
14.2875 = 0.5625 9/16
/same (barely)
15 = 0.5906
15.8750 = 0.6250 5/8
\same
16 = 0.6299 /
17 = 0.6693
17.4625 = 0.6875 11/16
18 = 0.7087
19 = 0.7480 \
19.0500 = 0.7500 3/4
/same
20 = 0.7874
20.6375 = 0.8125 13/16
\not the same
21 = 0.8268 /
22 = 0.8661 \same
22.2250 = 0.8750 7/8
/
23 = 0.9055
23.8125 = 0.9375 15/16
\same
24 = 0.9449 /
25 = 0.9843 \
25.4000 = 1.0000 1
/not the same
26 = 1.0236
26.9875 = 1.0625 1 1/16
\same
27 = 1.0630 /
28 = 1.1024
28.5750 = 1.1250 1 1/8
29 = 1.1417
30 = 1.1811 \
30.1625 = 1.1875 1 3/16
/same
31 = 1.2205
31.7500 = 1.2500 1 1/4
\same
32 = 1.2598 /
33 = 1.2992 \
33.3375 = 1.3125 1 5/16
/not the same
34 = 1.3386
34.9250 = 1.3750 1 3/8
\same
35 = 1.3780 /
36 = 1.4173
36.5125 = 1.4375 1 7/16
37 = 1.4567
38 = 1.4961 \
38.1000 = 1.5000 1 1/2
/same
39 = 1.5354
39.6875 = 1.5625 1 9/16
\.....?.....
40 = 1.5748 /
41 = 1.6142 \same
41.2750 = 1.6250 1 5/8
/
42 = 1.6535
42.8625 = 1.6875 1 11/16
\same
43 = 1.6929 /
44 = 1.7323
44.4500 = 1.7500 1 3/4
45 = 1.7717
46 = 1.8110 \
46.0375 = 1.8125 1 13/16
/same
47 = 1.8504
47.6250 = 1.8750 1 7/8
\not the same
48 = 1.8898
/
49 = 1.9291 \
49.2125 = 1.9375 1 15/16
/same
50 = 1.9685
50.8000 = 2.0000 2
\same
51 = 2.0079
/