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Men's Shirt Size Converter
Formal shirts are sized by collar. UK and US use inches; Europe uses centimetres.
Men's shirt (collar) sizes chart
| UK / US (collar in) | EU (collar cm) | Letter |
|---|---|---|
| 14 | 36 | XS |
| 14.5 | 37 | S |
| 15 | 38 | S |
| 15.5 | 39 | M |
| 16 | 41 | M/L |
| 16.5 | 42 | L |
| 17 | 43 | L |
| 17.5 | 44 | XL |
| 18 | 45 | XL |
| 18.5 | 47 | XXL |
| 19 | 48 | XXL |
| 19.5 | 49 | 3XL |
| 20 | 50 | 3XL |
Measuring your collar
Measure around the base of your neck where the collar sits, keeping one finger under the tape for comfort. Round up to the next half inch. A 15.5 inch collar is a European 39, and usually a medium.
Frequently asked questions
What is a 16 inch collar in cm?
A 16 inch collar is usually labelled 41 in European sizing (some brands use 40/41).
What collar size is a medium?
Medium shirts usually fit a 15.5 to 16 inch (39 to 41 cm) collar.