Match sizes by foot length (cm), then check model fit — US labels alone can mislead across brands.
Chart match · verify brand charts(paid link)
Full converter (model + shoes you own) · Reverse: Brooks → Adidas
Static conversion table (crawlable). Interactive tool above uses the same cm matching.
| Adidas US | cm | Brooks US | Brooks EU |
|---|---|---|---|
| 6.0 | 23.5 | 6.0 | 38.5 |
| 6.5 | 24.0 | 6.5 | 39.0 |
| 7.0 | 24.5 | 7.0 | 40.0 |
| 7.5 | 25.0 | 7.5 | 40.5 |
| 8.0 | 25.4 | 8.0 | 41.0 |
| 8.5 | 25.9 | 8.5 | 42.0 |
| 9.0 | 26.2 | 9.0 | 42.5 |
| 9.5 | 26.7 | 9.5 | 43.0 |
| 10.0 | 27.1 | 10.0 | 44.0 |
| 10.5 | 27.5 | 10.5 | 44.5 |
| 11.0 | 27.9 | 11.0 | 45.0 |
| 11.5 | 28.4 | 11.5 | 45.5 |
| 12.0 | 28.8 | 12.0 | 46.0 |
| 13.0 | 29.7 | 13.0 | 47.5 |
Adidas US 10 is 27.1 cm and the nearest Brooks US is also 10 (EU 44). The printed ladder is 1:1 from US 6 (23.5 cm) through US 13 (29.7 cm). The wear-box “Adidas 10 ≈ Brooks 10.0” is that centimeter match — it does not say Samba OG and Ghost 16 share a last. Brooks prints EU 44 at that US 10 on this table; Adidas terrace pages on this site also print EU 44 for the same US 10.
Adidas terrace shoes split by width more than by length: Samba OG is TTS length but narrow; Gazelle often feels a half long for narrow/average feet; Campus 00s and Ultraboost 1.0 follow their own volume. Brooks on this page is a running toolkit: Ghost 16 is TTS as a high-volume daily trainer — use Brooks B/D/2E (and extra-wide) instead of oversizing length; Glycerin 21 matches Ghost-style TTS length with a plush ride. A chart-matched Samba 10 can still pinch in Ghost mesh; that is width, not a short Brooks chart.
Convert from the Adidas size that fits in length. If you already downsize Gazelle, do not auto-downsize Ghost. If Samba felt narrow, spend the next decision on a Brooks width letter, not on jumping to 10.5. Half a size on this table is 26.7 → 27.1 → 27.5 cm. That is a length tweak, not a substitute for 2E.
Even when charts match, lasts differ. Check these guides:
Adidas: Samba OG · Gazelle · Ultraboost 1.0 · Campus 00s
Brooks: Ghost 16 · Glycerin 21
Also compare Adidas to: Puma · Reebok · New Balance
Check prices: Adidas Brooks (paid link)
Clothes sizing uses a separate compare path.