Home › Men's Suit & Jacket Size Converter › UK 40
UK men's suit size 40 in other sizes
A UK men's suit size 40 is EU / IT 50, FR 50, Chest 102, JP L.
UK / US (chest in)40
EU / IT50
FR50
Chest (cm)102
JPL
LetterM
Sizes vary by brand. Check the retailer's chart if you are between sizes.
Open full converter →Men's suit and jacket sizes chart
| UK / US (chest in) | EU / IT | FR | Chest (cm) | JP | Letter |
|---|---|---|---|---|---|
| 34 | 44 | 44 | 86 | S | XS |
| 36 | 46 | 46 | 91 | S | S |
| 38 | 48 | 48 | 97 | M | S/M |
| 40 | 50 | 50 | 102 | L | M |
| 42 | 52 | 52 | 107 | L | L |
| 44 | 54 | 54 | 112 | LL | L/XL |
| 46 | 56 | 56 | 117 | LL | XL |
| 48 | 58 | 58 | 122 | 3L | XXL |
| 50 | 60 | 60 | 127 | 3L | XXL/3XL |
| 52 | 62 | 62 | 132 | 4L | 3XL |
The highlighted row shows UK 40 and its equivalents. These are standard conversions used by most retailers; some brands cut larger or smaller, so if you are between sizes, go by your measurements.
Frequently asked questions
What is UK size 40 in EU / IT?
UK men's suit size 40 is EU / IT 50.