International sizing systems are a mess. A US women’s size 8 is a UK 12 but an EU 38. A men’s medium in the US might be a large in Asian sizing. And within any single system, brands vary enough that the same number fits differently across manufacturers. This guide provides conversion charts for every major sizing system, plus practical advice for getting the right fit when shopping across borders.
| US Men | UK | EU | CM (foot length) |
|---|---|---|---|
| 7 | 6 | 40 | 25.0 |
| 8 | 7 | 41 | 26.0 |
| 9 | 8 | 42 | 27.0 |
| 10 | 9 | 43 | 28.0 |
| 11 | 10 | 44–45 | 29.0 |
| 12 | 11 | 45–46 | 30.0 |
| 13 | 12 | 47 | 31.0 |
| US Women | UK | EU | CM (foot length) |
|---|---|---|---|
| 5 | 3 | 35–36 | 22.0 |
| 6 | 4 | 36–37 | 23.0 |
| 7 | 5 | 37–38 | 24.0 |
| 8 | 6 | 38–39 | 25.0 |
| 9 | 7 | 39–40 | 26.0 |
| 10 | 8 | 40–41 | 27.0 |
| 11 | 9 | 41–42 | 28.0 |
EU sizes are approximate — they vary by brand. The most reliable method is measuring foot length in centimeters and comparing to brand-specific charts. Use the Shoe Size Converter for instant conversions.
How to measure your foot: Stand on a piece of paper with your heel against a wall. Mark the tip of your longest toe. Measure the distance in centimeters. Do both feet — most people have one foot slightly larger. Always size to your larger foot and shop in the afternoon when feet are slightly swollen from the day’s activity.
| US | UK | EU | Label |
|---|---|---|---|
| 0–2 | 4–6 | 32–34 | XS |
| 4–6 | 8–10 | 36–38 | S |
| 8–10 | 12–14 | 40–42 | M |
| 12–14 | 16–18 | 44–46 | L |
| 16–18 | 20–22 | 48–50 | XL |
| US/UK | EU | Label | Chest (inches) |
|---|---|---|---|
| 34–36 | 44–46 | S | 34–36 |
| 38–40 | 48–50 | M | 38–40 |
| 42–44 | 52–54 | L | 42–44 |
| 46–48 | 56–58 | XL | 46–48 |
| 50–52 | 60–62 | XXL | 50–52 |
Vanity sizing is the practice of labeling clothes with smaller numbers than the actual measurements to make customers feel good. A US women’s size 8 in the 1950s had a 24-inch waist; today, a size 8 typically has a 28–30 inch waist. This means vintage and luxury brands often run “small” while fast-fashion brands run “large” — in reality, they are just using different labeling standards.
Regional fit differences also matter. European brands tend to cut slimmer with narrower shoulders. Japanese and Korean brands run 1–2 sizes smaller than US equivalents for the same numeric label. Always check the brand’s size guide, which typically lists actual body measurements (chest, waist, hips, inseam) in centimeters or inches.
Convert any size instantly. Use the free Shoe Size Converter and Clothing Size Converter for quick international conversions — no signup required.
Related tools: Shoe Size Converter · Clothing Size Converter · Length Converter