Adidas Size Converter —
US, UK, EU & CM
Convert your Adidas size instantly. Includes model-specific fit notes for Samba, Ultraboost, Stan Smith, NMD, and more.
| Model | Fit Verdict | Recommendation | Notes |
|---|---|---|---|
| Adidas Samba OG | Go Half Down | Size down ½ | Runs large; wide and long toe box |
| Adidas Stan Smith | Go Half Down | Size down ½ | Classic cupsole runs large across the board |
| Adidas Ultraboost | True to Size | Your normal size | Primeknit upper stretches to foot shape |
| Adidas NMD R1 | True to Size | Your normal size | Consistent fit; boost sole is comfortable TTS |
| Adidas Forum Low/Mid | True to Size | Your normal size | Roomy toe box, true across sizes |
| Adidas Gazelle | Go Half Down | Size down ½ | Slim silhouette — runs slightly large |
| Adidas Spezial | Go Half Down | Size down ½ | Very similar to Samba — same sizing advice applies |
| Adidas 4D | True to Size | Your normal size | Performance-oriented; consistent sizing |
Do Adidas shoes run true to size?
It depends heavily on the model. Lifestyle models like the Samba, Gazelle, and Stan Smith all run large — most buyers size down half a size. Performance and Boost models like the Ultraboost run true to size because the Primeknit upper adapts to the foot. If you're unsure, always check the specific model's fit guide above before buying.
Nike vs Adidas sizing — are they the same?
Nike and Adidas use the same US Men's number scale, but they don't always fit the same. Nike Dunk Lows tend to run narrow, while Adidas Sambas run wide and long. Most people find their Nike size and Adidas size to be the same number, but the actual fit can feel very different. When switching between brands, always try before you buy or check the model-specific guide.