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Men's Size Guide: Suits, Waistcoats, Trousers and Shoes
This size guide covers Happy Gentleman suits, blazers, waistcoats, trousers and shoes. Jacket and waistcoat sizes follow your chest measurement in inches; trouser sizes follow your waist measurement in inches. UK and US suit sizes are the same.
Suit jackets, blazers and waistcoats
Your jacket size is your chest measurement in inches. For example, a 40-inch chest is a size 40 (M/L) jacket.
| Size | UK chest (in) | US chest (in) | EU size | Chest (cm) |
|---|---|---|---|---|
| XS | 34 | 34 | 44 | 86 |
| S | 36 | 36 | 46 | 91 |
| M | 38 | 38 | 48 | 97 |
| M/L | 40 | 40 | 50 | 102 |
| L | 42 | 42 | 52 | 107 |
| XL | 44 | 44 | 54 | 112 |
| 2XL | 46 | 46 | 56 | 117 |
| 3XL | 48 | 48 | 58 | 122 |
| 4XL | 50 | 50 | 60 | 127 |
| 5XL | 52 | 52 | 62 | 132 |
How to measure your chest
Wrap a measuring tape around the fullest part of your chest, just under your armpits and across your shoulder blades. Keep the tape snug but not tight.
Jacket sleeve length (inches)
Most jackets come in Short, Regular and Long fittings. Choose Short if you are under about 5'8" (173 cm), Regular for about 5'8"–6'0" (173–183 cm) and Long if you are over 6'0" (183 cm).
| Chest size | Short | Regular | Long |
|---|---|---|---|
| 34 | 23.9 | 24.9 | 25.9 |
| 36 | 24.1 | 25.1 | 26.1 |
| 38 | 24.4 | 25.4 | 26.3 |
| 40 | 24.6 | 25.6 | 26.6 |
| 42 | 24.8 | 25.8 | 26.8 |
| 44 | 25.1 | 26.1 | 27 |
| 46 | 25.3 | 26.3 | 27.3 |
| 48 | 25.6 | 26.5 | 27.5 |
| 50 | 25.8 | 26.8 | 27.8 |
| 52 | 26 | 27 | 28 |
Trousers
Your trouser size is your waist measurement in inches.
| Size | UK waist (in) | US waist (in) | Waist (cm) |
|---|---|---|---|
| XS | 28 | 28 | 71 |
| S | 30 | 30 | 76 |
| M | 32 | 32 | 81 |
| M/L | 34 | 34 | 86 |
| L | 36 | 36 | 91 |
| XL | 38 | 38 | 97 |
| 2XL | 40 | 40 | 102 |
| 3XL | 42 | 42 | 107 |
| 4XL | 44 | 44 | 112 |
| 5XL | 46 | 46 | 117 |
How to measure your waist
Wrap a measuring tape around your natural waistline, just above your hip bones and below your rib cage. Keep the tape level and snug but not tight.
Trouser length (inside leg)
The inside leg (inseam) is measured from the crotch seam to the bottom of the trouser leg.
- Short: 30 inches (76 cm)
- Regular: 32 inches (81 cm)
- Long: 34 inches (86 cm)
Suit sizes: jacket and trousers
A typical drop between jacket and trousers is 6 inches: a 40 chest jacket usually goes with 34 waist trousers. On suits where the jacket and trousers are sized separately, choose each one by your own measurements.
Shoes
| UK | US | EU |
|---|---|---|
| 5 | 6 | 39 |
| 6 | 7 | 40 |
| 7 | 8 | 41 |
| 8 | 9 | 42 |
| 9 | 10 | 43 |
| 10 | 11 | 44 |
| 11 | 12 | 45 |
| 12 | 13 | 46 |
Between two sizes?
If you are between two sizes, choose the larger size for jackets and coats (so you can wear layers underneath) and the size closer to your waist measurement for trousers. We offer free exchanges on UK orders, so you can swap the size if it does not fit.
Need help with sizing?
Email us your height, weight, chest and waist measurements at hello@happygentleman.com or use live chat and we will recommend a size. See also our Men's Suit & Outfit Guide and Delivery and Returns.