Convert shoe sizes accurately between US, EU, and UK systems. This converter works for both men and women.
Shoe sizes do not convert using a single mathematical formula. Each system (US, EU, UK) is based on different foot length standards.
This converter uses standard international size charts commonly adopted by footwear brands.
US shoe sizes are primarily used in the United States and Canada. They are measured based on foot length and differ between men’s and women’s shoes.
EU shoe sizes are used across Europe and are based on the Paris point system. One EU size equals approximately ⅔ of a centimeter.
UK shoe sizes are commonly used in the United Kingdom and Ireland. They are similar to US sizes but generally one size smaller for adults.
| US | EU | UK |
|---|---|---|
| 6 | 39 | 5.5 |
| 7 | 40 | 6.5 |
| 8 | 41 | 7.5 |
| 9 | 42 | 8.5 |
| 10 | 43 | 9.5 |
| 11 | 44 | 10.5 |
| 12 | 45 | 11.5 |
US 9 = EU 42 = UK 8.5
EU 40 = US 7
UK 10.5 = US 11
Shoe sizes for men and women are not the same, especially in the US and UK sizing systems. While EU shoe sizes are generally unisex, US and UK sizes differ because they are based on different foot length baselines.
In most cases, women’s shoe sizes are approximately 1.5 sizes larger than men’s for the same foot length in the US system.
| US Men | US Women | EU | UK |
|---|---|---|---|
| 6 | 7.5 | 39 | 5.5 |
| 7 | 8.5 | 40 | 6.5 |
| 8 | 9.5 | 41 | 7.5 |
| 9 | 10.5 | 42 | 8.5 |
| 10 | 11.5 | 43 | 9.5 |
Tip: When buying unisex shoes, always check whether the size is listed in men’s or women’s sizing.
Kids shoe sizes follow a completely different scale than adult sizes. Children’s sizing is usually divided into infant, toddler, and youth categories.
Because children’s feet grow quickly, accurate conversion is especially important when ordering shoes online or buying from international brands.
| US Kids | EU | UK | Foot Length (cm) |
|---|---|---|---|
| 5C | 21 | 4.5 | 12.7 |
| 7C | 23 | 6 | 14 |
| 9C | 26 | 8 | 16 |
| 11C | 28 | 10 | 17.8 |
| 13C | 31 | 12.5 | 19.7 |
| 1Y | 32 | 13 | 20.3 |
| 3Y | 34 | 2 | 21.6 |
JP (Japan) and CN (China) shoe sizes are fundamentally different from US, EU, and UK systems. Instead of abstract size numbers, they are based on actual foot length measured in centimeters.
This makes JP and CN sizing one of the most accurate and logical shoe size systems, especially when buying shoes from Asian brands or online marketplaces.
| JP / CN (cm) | US | EU | UK |
|---|---|---|---|
| 23.0 | 5 | 36 | 3 |
| 24.0 | 6 | 38 | 5 |
| 25.0 | 7 | 40 | 6 |
| 26.0 | 8 | 41 | 7 |
| 27.0 | 9 | 42 | 8 |
| 28.0 | 10 | 44 | 9 |
| 29.0 | 11 | 45 | 10 |
Note: Some Chinese manufacturers may label sizes differently. Always verify whether the size refers to foot length (cm) or an internal brand scale.
No. Shoe sizing systems vary by region and brand.
Yes. EU sizes are generally the same for men and women.
Each manufacturer may adjust sizing based on shoe design and materials.
Although sizes differ numerically, the actual foot length remains nearly the same across systems.