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1
mm = approximately 1/32" 21 mm = approximately 13/16"
2 mm = approximately 1/8" 22
mm = approximately 7/8"
3 mm = approximately 1/8" 23
mm = approximately 15/16"
4 mm = approximately 3/16" 24
mm = approximately 15/16"
5 mm = approximately 3/16"
25 mm = approximately 1"
6 mm = approximately 1/4" 26
mm = approximately 1"
7 mm = approximately 1/4" 27
mm = approximately 1 1/16"
8 mm = approximately 5/16" 28
mm = approximately 1 1/4"
9 mm = approximately 3/8" 29
mm = approximately 1 1/8"
10 mm = approximately 3/8" 30
mm = approximately 1 3/16"
11 mm = approximately 7/16" 31
mm = approximately 1 1/4"
12 mm = approximately 1/2" 32
mm = approximately 1 1/4"
13 mm = approximately 1/2" 33
mm = approximately 1 5/16"
14 mm = approximately 9/16" 34
mm = approximately 1 3/8"
15 mm = approximately 5/8" 35
mm = approximately 1 3/8"
16 mm = approximately 5/8" 36
mm = approximately 1 7/16"
17 mm = approximately 11/16" 37 mm
= approximately 1 1/2"
18 mm = approximately 3/4" 38
mm = approximately 1 1/2"
19 mm = approximately 3/4" 39
mm = approximately 1 9/16"
20 mm = approximately 13/16" 40 mm
= approximately 1 9/16"
For comparison purposes, here are the diameter measurements of some common
items:
Dime = 17mm
Penny = 19mm
Nickel = 21mm
Quarter = 24mm
It is also important to make sure that you understand the definition of what the
specific measurement is for. Here are some commonly misunderstood definitions:
Diameter: The
distance of a straight line segment passing through the center of a figure,
especially of a circle or sphere, and terminating at the edges
Circumference: The
size of an item as given by the distance around it.
We do hope this information helps you to make a more informed purchase; we
always welcome any questions or suggestions regarding this guide or any of our
items.
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