Convert MM to Inches (mm to inches convertor)

Use below chart to convert mm to inches and approximate lengths.

mm	Inches	Inches
1	0.04	1/32 inch
2	0.08	1/16 inch
3	0.12	3/32 inch
4	0.16	1/8 inch
5	0.20	3/16 inch
6	0.24	Just under 1/4 inch
7	0.28	Just over 1/4 inch
8	0.31	5/16 inch
9	0.35	Just under 3/8 inch
10	0.39	Just over 3/8 inch
11	0.43	7/16 inch
12	0.47	Just under 1/2 inch
13	0.51	Just over 1/2 inch
14	0.55	9/16 inch
15	0.59	Just under 5/8 inch
16	0.63	5/8 inch
17	0.67	Just under 11/16 inch
18	0.71	Just over 3/4 inch
19	0.75	Just over 3/5 inch
20	0.79	Just under 13/16 inch
21	0.83	Just over 13/16 inch
22	0.87	Just under 7/8 inch
23	0.91	Just over 7/8 inch
24	0.94	15/16 inch
25	0.98	1 inch
26	1.02	1 and 1/32 inch
27	1.06	1 and 1/16 inch
28	1.10	1 and 3/32 inch
29	1.14	1 and1/8 inch
30	1.18	1 and 3/16 inch
31	1.22	Just under 1 and 1/4 inch
32	1.26	Just over 1 and 1/4 inch
33	1.30	1 and 5/16 inch
34	1.34	Just under 1 and 3/8 inch
35	1.38	Just over 1 and 3/8 inch
36	1.42	1 and7/16 inch
37	1.46	Just under 1 and 1/2 inch
38	1.50	Just over 1 and 1/2 inch
39	1.54	1 and 9/16 inch
40	1.57	Just under 1 and 5/8 inch
41	1.61	1 and 5/8 inch
42	1.65	Just under 1 and 11/16 inch
43	1.69	Just over 1 and 3/4 inch
44	1.73	Just over 1 and 3/5 inch
45	1.77	Just under 1 and 13/16 inch
46	1.81	Just over 1and 13/16 inch
47	1.85	Just under 1 and 7/8 inch
48	1.89	Just over 1 and 7/8 inch
49	1.93	1 and 15/16 inch
50	1.97	2 inches

For comparison, here are the Thickness measurements of some common US coins: For you to get clearer understanding of how thick or wide is a piece of jewelry, you can use US coins for reference. For thicker items you can stack multiple coins to acquire the approximate thickness or the width of your selected jewelry.

• Dime Thickness is 1.35mm and Diameter is 17.9mm
• Penny Thickness is 1.55mm and Diameter is 19.05mm
• Nickel Thickness is 1.95mm and Diameter is 21.21mm
• Quarter Thickness is 1.75mm and Diameter is 24.26mm