1 mm = approximately 1/32"
2 mm = approximately 1/8"
3 mm = approximately 1/8"
4 mm = approximately 3/16"
5 mm = approximately 3/16"
6 mm = approximately 1/4"
7 mm = approximately 1/4"
8 mm = approximately 5/16"
9 mm = approximately 3/8"
10 mm = approximately 3/8"
11 mm = approximately 7/16"
12 mm = approximately 1/2"
13 mm = approximately 1/2"
14 mm = approximately 9/16"
15 mm = approximately 5/8"
16 mm = approximately 5/8"
17 mm = approximately 11/16"
18 mm = approximately 3/4"
19 mm = approximately 3/4"
20 mm = approximately 13/16"
For comparison:
Dime = 17mm
Penny = 19mm
Nickel = 21mm
Quarter = 24mm
