Men’s Pants Size Converter
Shopping for trousers internationally? US and UK men’s pants sizes are identical in number, but EU sizing uses a completely different scale. Use our converter to find the right fit whether you are buying American jeans or European chinos.
Men’s Pants Size Chart
US and UK sizes are based on waist measurement in inches. EU sizes follow continental European numbering. Sizes may vary between brands and cuts (slim, regular, relaxed).
Quick Converter
| Waist (in) | Waist (cm) | US | UK | EU |
|---|---|---|---|---|
| 28 | 71 | 28 | 28 | 44 |
| 29 | 74 | 29 | 29 | 44-46 |
| 30 | 76 | 30 | 30 | 46 |
| 31 | 79 | 31 | 31 | 46-48 |
| 32 | 81 | 32 | 32 | 48 |
| 33 | 84 | 33 | 33 | 48-50 |
| 34 | 86 | 34 | 34 | 50 |
| 36 | 91 | 36 | 36 | 52 |
| 38 | 97 | 38 | 38 | 54 |
| 40 | 102 | 40 | 40 | 56 |
| 42 | 107 | 42 | 42 | 58 |
| 44 | 112 | 44 | 44 | 60 |
Click any row to highlight it. Sizes are approximate and may vary by brand.
How to Measure Your Waist
Find Your Natural Waist
Stand upright and locate the top of your hip bone. Your natural waist sits just above this point, typically around your navel. This is where most trousers sit.
Measure with a Tape
Wrap a soft measuring tape around your waist at the point where you wear your pants. Keep the tape flat against your body, parallel to the floor. Do not suck in your stomach.
Check Against Existing Pants
Alternatively, lay a well-fitting pair of pants flat and measure the waistband from end to end, then double that number. Note that many brands add 1-2 inches of “vanity sizing” to the labeled size.
Understanding Pants Fit Types
Slim Fit
Narrower through the thigh and leg opening. Slim fit pants have less room in the seat and thigh than regular cut. If you have athletic thighs, consider sizing up one waist size in slim fit styles.
Regular / Straight Fit
The most universal cut with moderate room through the thigh and a straight leg opening. Regular fit trousers follow the size chart most closely and are the safest choice when ordering online for the first time.
Relaxed Fit
Extra room in the seat and thigh for maximum comfort. Relaxed fit pants may feel a size larger than the label suggests. If you prefer a looser drape, your standard waist size in a relaxed cut will provide ample room.
Frequently Asked Questions
Are US and UK men's pants sizes the same?
Yes, US and UK men's pants sizes both use waist measurements in inches and are generally interchangeable. A US size 32 is the same as a UK size 32. The main difference arises with EU sizing, which uses a different numbering system.
How do I convert my US waist size to EU?
A quick approximation: add 16 to your US waist size. For example, a US 32 is roughly an EU 48, and a US 34 is roughly an EU 50. However, this varies slightly by brand, so always check the chart above.
What does inseam measurement mean?
Inseam is the length from the crotch seam to the bottom of the leg. It determines pants length, not waist size. Common inseam lengths are 30 (short), 32 (regular), and 34 (long) inches. This chart focuses on waist sizing.
Why do different brands fit differently at the same waist size?
Vanity sizing is common — some brands label a 34-inch waistband as a size 32 to flatter the customer. Additionally, different cuts (slim, regular, relaxed) have different amounts of room in the thigh and seat even at the same waist measurement.
See How Pants Look On You Before You Buy
Our AI virtual try-on technology lets you visualize trousers, jeans, and chinos on a realistic model — so you can shop with confidence across any brand or country.
