How do you convert American dress shirt sizes to European and Bristish dress shirt sizes? What is the standard size? We hope the chart below can be of assistance.

American / European / British / Standard
14.5 / 37 / 14.5 / Small
15 / 38 / 15 / Small-Medium
15.5 / 39 / 15.5 / Medium
16 / 40 / 16 / Medium-Large
16.5 / 41 / 16.5 / Large
17 / 42 / 17 / Large/XL
17.5 / 43 / 17.5 / XL
18 / 44 / 18 / XL-XXL
18.5 / 45 / 18.5 / XXL
19 / 46 / 19 / XXL-3XL
19.5 / 47 / 19.5 / 3XL
20 / 48 / 20 / 4XL
21 / 50 / 21 / 5XL
22 / 52 / 60 / 6XL