Men's sizes
US men's size 40 worldwide
US men's jacket and suit size 40 (chest in inches) is EU 50 in German, French and Italian sizing, and UK 40. In letter sizes that is usually M. It fits a chest of about 100 cm (39.5 in) and a waist of 88 cm (34.5 in). European short sizing calls this 25, long sizing 98.
US men's size 40 in every sizing system
| USUnited States, Canada (chest in inches) | 40 |
|---|---|
| UKUnited Kingdom (chest in inches) | 40 |
| EUEU sizing (Germany, Austria, Switzerland) | 50 |
| FRFrance, Belgium | 50 |
| ITItaly | 50 |
| INTLetter sizes (XS–3XL) | M |
| ShortShort sizes (EU system, stocky build) | 25 |
| LongLong sizes (EU system, tall and slim) | 98 |
| Bust / chest | 100 cm |
| Waist | 88 cm |
Will US men's size 40 actually fit?
If your chest is larger than 100 cm (39.5 in), go for size 42. If your chest is closer to 96 cm (38 in), try size 38.
Your own measurements are the safest guide: here is how to measure – then the calculator's “From measurements” mode suggests the size that fits.
Neighboring sizes compared
Questions about US men's size 40
What is US men's size 40 in EU sizes?
US 40 is EU 50. European jacket sizes are simply the US chest size plus 10.
Is US men's size 40 a medium or a large?
Size 40 is usually sold as M. What counts is the chest measurement of about 100 cm (39.5 in).
What chest size fits a US 40 jacket?
A chest of about 100 cm (39.5 in) and a waist of about 88 cm (34.5 in).
What are European short and long sizes for 40?
The short size is 25 and the long size is 98 – same width, different sleeve and body length.