BRAND GUIDE
Adidas Shoe Size Chart
Adidas usually fits close to Nike at the same US size. Ultraboost is generally true to size with a snug, sock-like fit.
Men, women, and kids tables in US, UK, EU, and CM—including Adidas fractional EU labels.
Last updated: July 2026 · US, UK, EU, and CM from Adidas brand size charts
How to Use This Adidas Size Chart
How to Read the Chart
- Know Your Current Size: Determine your Adidas size in one system (US, UK, EU, or CM). If you're not sure, measure your foot length and use the converter above.
- Select Your Gender: Choose whether you're looking for men's, women's, or kids' sizes. Adidas sizing scales differ between genders.
- Use the Size Chart: Find your size in the appropriate chart below. Note that Adidas uses fractional EU sizes (42 2/3, 43 1/3), which is unique to the brand.
- Check Model-Specific Notes: Most Adidas models fit true to size, but some may have slight variations. Check customer reviews for specific models when available.
Adidas Sizing Characteristics
Fractional EU Sizing:
Adidas uses fractional EU sizes like 42 2/3 and 43 1/3, which differ from the half-size steps most other brands use. That gives finer steps between whole EU sizes.
Popular Models:
Ultraboost: Generally true to size with a snug, sock-like fit. Some users with wider feet may need to size up.
Stan Smith: True to size with a classic, comfortable fit.
Superstar: True to size, but some users find them slightly narrow.
Width Considerations:
Adidas shoes generally fit true to size, but some models may feel slightly narrow for wider feet. If you have wider feet, consider sizing up 0.5 sizes or looking for models with a roomier toe box.
Adidas sizing can differ from Nike and other brands. Use the charts and converter below for men's, women's, and kids' sizes.
Need more power? Compare multiple brands at once with our Full Converter
Key Takeaway: Adidas Tends to Run True to Size
For most of their popular models (like Stan Smith, Superstar, and Ultraboost), Adidas generally fits true to size. If you have a wider foot, you might consider going up half a size on some models.
Adidas Men's Shoe Size Chart
| US | UK | EU | JP/CM |
|---|---|---|---|
| 4 | 3.5 | 36 | 220 |
| 4.5 | 4 | 36 2/3 | 225 |
| 5 | 4.5 | 37 1/3 | 230 |
| 5.5 | 5 | 38 | 235 |
| 6 | 5.5 | 38 2/3 | 240 |
| 6.5 | 6 | 39 1/3 | 245 |
| 7 | 6.5 | 40 | 250 |
| 7.5 | 7 | 40 2/3 | 255 |
| 8 | 7.5 | 41 1/3 | 260 |
| 8.5 | 8 | 42 | 265 |
| 9 | 8.5 | 42 2/3 | 270 |
| 9.5 | 9 | 43 1/3 | 275 |
| 10 | 9.5 | 44 | 280 |
| 10.5 | 10 | 44 2/3 | 285 |
| 11 | 10.5 | 45 1/3 | 290 |
| 11.5 | 11 | 46 | 295 |
| 12 | 11.5 | 46 2/3 | 300 |
| 12.5 | 12 | 47 1/3 | 305 |
| 13 | 12.5 | 48 | 310 |
| 13.5 | 13 | 48 2/3 | 315 |
| 14 | 13.5 | 49 1/3 | 320 |
| 14.5 | 14 | 50 | 325 |
Adidas Women's Shoe Size Chart
| US | UK | EU | JP/CM |
|---|---|---|---|
| 5 | 3.5 | 36 | 220 |
| 5.5 | 4 | 36 2/3 | 225 |
| 6 | 4.5 | 37 1/3 | 230 |
| 6.5 | 5 | 38 | 235 |
| 7 | 5.5 | 38 2/3 | 240 |
| 7.5 | 6 | 39 1/3 | 245 |
| 8 | 6.5 | 40 | 250 |
| 8.5 | 7 | 40 2/3 | 255 |
| 9 | 7.5 | 41 1/3 | 260 |
| 9.5 | 8 | 42 | 265 |
| 10 | 8.5 | 42 2/3 | 270 |
| 10.5 | 9 | 43 1/3 | 275 |
| 11 | 9.5 | 44 | 280 |
| 11.5 | 10 | 44 2/3 | 285 |
| 12 | 10.5 | 45 1/3 | 290 |
Adidas Kids' Shoe Sizes (Big Kids (3.5 - 7.5))
| US | UK | EU | JP/CM |
|---|---|---|---|
| 3.5 | 3 | 35.5 | 215 |
| 4 | 3.5 | 36 | 220 |
| 4.5 | 4 | 36 2/3 | 225 |
| 5 | 4.5 | 37 1/3 | 230 |
| 5.5 | 5 | 38 | 235 |
| 6 | 5.5 | 38 2/3 | 240 |
| 6.5 | 6 | 39 1/3 | 240 |
| 7 | 6.5 | 40 | 245 |
| 7.5 | 7 | 40 2/3 | 250 |
Adidas Kids' Shoe Sizes (Little Kids (10.5k - 3))
| US | UK | EU | JP/CM |
|---|---|---|---|
| 10.5k | 10k | 28 | 165 |
| 11k | 10.5k | 28.5 | 170 |
| 11.5k | 11k | 29 | 175 |
| 12k | 11.5k | 30 | 180 |
| 12.5k | 12k | 30.5 | 180 |
| 13k | 12.5k | 31 | 185 |
| 13.5k | 13k | 31.5 | 190 |
| 1 | 13.5k | 32 | 195 |
| 1.5 | 1 | 33 | 200 |
| 2 | 1.5 | 33.5 | 205 |
| 2.5 | 2 | 34 | 210 |
| 3 | 2.5 | 35 | 210 |
Adidas Kids' Shoe Sizes (Babies & Toddlers (1k - 10k))
| US | UK | EU | JP/CM |
|---|---|---|---|
| 1k | 0k | 16 | 80 |
| 2k | 1k | 17 | 90 |
| 3k | 2k | 18 | 100 |
| 4k | 3k | 19 | 105 |
| 5k | 4k | 20 | 115 |
| 5.5k | 5k | 21 | 120 |
| 6k | 5.5k | 22 | 125 |
| 6.5k | 6k | 23 | 130 |
| 7k | 6.5k | 23.5 | 135 |
| 7.5k | 7k | 24 | 140 |
| 8k | 7.5k | 25 | 145 |
| 8.5k | 8k | 25.5 | 150 |
| 9k | 8.5k | 26 | 155 |
| 9.5k | 9k | 26.5 | 155 |
| 10k | 9.5k | 27 | 160 |
Frequently Asked Questions
How does Adidas sizing compare to Nike?
Generally, Adidas and Nike sizing are very similar. If you are a US size 10 in Nike, you will most likely be a US size 10 in Adidas. The main difference often comes down to the fit and shape of the shoe (the 'last'). Some users find certain Nike models to be slightly narrower than comparable Adidas models.
Are Adidas Ultraboost true to size?
Yes, for the most part, Adidas Ultraboost models fit true to size. They are designed to have a snug, sock-like fit. If you prefer a looser fit or have wider feet, you might consider going up half a size.
What's unique about Adidas EU sizing?
A distinctive feature of Adidas's European (EU) sizing is the use of fractional steps, such as 42, 42 2/3, 43 1/3, and 44. This is different from most other brands that use half or full size steps in their EU charts.
Related Tools & Guides
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