Adidas vs Hoka Shoe Size - Which Runs Smaller?

Adidas and Hoka run true to each other. Keep your usual size when switching. If you wear Adidas in US 9, start by checking Hoka in US 8.5. Both brands use the same foot-length measurement; the small differences are in last shape, not the conversion formula.

Adidas to Hoka size chart

Starting Hoka size to check when you wear Adidas in each US men size.
US Men (Adidas) Adidas -> Hoka Foot length
7 6.5 246mm
8 7.5 254mm
9 8.5 262mm
10 9.5 271mm
11 10.5 279mm

Fit verdict

  • Adidas: True to size (70% of buyers)
  • Hoka: True to size (62% of buyers)

Why the sizes differ

Adidas and Hoka are close enough to treat as the same size at the brand level. The measured gap is about 2mm.

Adidas foot length is measured in millimetres, then mapped to US size. The Hoka starting size stays the same because of each brand fit bias, not a different conversion formula.