Brand Size Comparisons
Switching brands? These pages map your current US size to a starting size to check in another brand — through foot length, not guesswork. Each pair includes a one-line fit-direction verdict and links to the full comparison table.
Which brand runs bigger?
| Comparison | Verdict |
|---|---|
| Nike vs Adidas | Adidas runs ~half a size larger than Nike |
| Nike vs New Balance | New Balance runs ~1 size larger than Nike |
| Adidas vs New Balance | New Balance runs ~half a size larger than Adidas |
| Nike vs Hoka | Hoka runs ~half a size larger than Nike |
| Brooks vs Asics | Brooks runs ~half a size larger than Asics |
| Puma vs Adidas | Puma and Adidas fit about the same |
All comparisons
If I wear Nike 9, what size is Adidas?
Nike runs about half a size small; Adidas fits true to size. A Nike US 9 buyer typically has a foot that fits Adidas US 9 (same size). See Nike vs Adidas or full converter.
What size New Balance equals Nike 9?
New Balance runs about half a size large and Nike runs half a size small — so a Nike US 9 is equivalent to roughly New Balance US 8.5 at the same foot length. See Nike vs New Balance.
Why do brand sizes differ if they all use US sizing?
"US size 9" is a label, not a precise foot-length specification. Each brand calibrates its last independently. Our comparisons route through foot length in mm.