Shirt collar size cm (EU) to inches
If your European shirt is a 41 and you shop in the US or UK, enter it to get the matching inch size.
Loading the tool…
Processing and privacy: The result is calculated inside your browser and your data is not sent to any server.
How to use it
- Enter eu collar size.
- The result appears straight away and updates as you edit.
- Copy the result, or copy a link that keeps the same values to share it.
How it is calculated
Exact inches = cm ÷ 2.54. Inch size = the nearest half inch, since collars are sold in 0.5 steps.
Example
Inputs: EU collar size = 39 cm. Result: US and UK collar size: 15.5 in; Exact value: 15.35 in; Letter size: M.
Limits and caveats
- 40 cm falls between 15.5 and 16 (15.75 in), and some brands label it 15.75.
- The letter size is approximate and varies by brand.
Questions about this tool
What is a 41 shirt in inches?
41 cm is 16.14 in, so the US and UK size is 16.
And a 39?
39 cm is 15.35 in, and the nearest half inch is 15.5.
Why half inches?
Dress shirt collars in the US and UK come in half-inch steps like 15, 15.5 and 16.