Button Size Chart
12L
7.5mm
0.312 in
13L
8mm
0.312 in
14L
9mm
0.343 in
15L
9.5mm
0.375 in
16L
10mm
0.406 in
17L
10.5mm
0.437in
18L
11.5mm
0.458 in
20L
12.5mm
0.5 in
22L
14mm
0.562 In
24L
15mm
0.625 in
26L
16mm
0.656 in
28L
18mm
0.718 in
30L
19mm
0.75 in
32L
20mm
0.812 in
34L
21.5mm
0.843 in
36L
23mm
0.875 in
38L
24mm
0.937 in
40L
25mm
1 in
42L
26mm
1.02 in
44L
28mm
1.1 in
48L
30mm
1.18 in
54L
34mm
1.34 in
60L
38mm
1.5 in
64L
40mm
1.575 in