Men's letter sizes (S, M, L, XL) to numbers
Letter sizes mean little without numbers behind them. Pick a letter to see the measurements a common US men's chart gives it.
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 letter 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
Values follow a common US men's chart: S chest 34 to 36 in, M 38 to 40, L 42 to 44, XL 46 to 48. EU jacket = chest + 10 and waist = chest - 6.
Example
Inputs: Letter size = L. Result: Chest: 42-44 in; EU jacket size: 52-54; Shirt collar: 16-16.5 in.
Limits and caveats
- Letter sizes have no global standard; European and Asian brands often give the same letter smaller measurements.
- Values are body measurements, not garment measurements.
Questions about this tool
What is a men's medium in numbers?
On the common chart M fits a 38 to 40 in chest, which is EU jacket 48 to 50 and waist 32 to 34.
Is a European XL the same as a US XL?
Not always. Some European and Asian brands run a size smaller, so compare numbers, not letters.
Is XXL the same as 2XL?
Yes, they are two names for one size, as are 3XL and XXXL.