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: Clarks → Adidas
Static conversion table (crawlable). Interactive tool above uses the same cm matching.
| Adidas US | cm | Clarks US | Clarks 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 |
This page starts from Adidas centimeters. Adidas US 10 is 27.1 cm and the nearest Clarks 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 ≈ Clarks 10.0” is that Adidas-side match. The reverse Clarks→Adidas direction on this site starts from Clarks 27.2 cm at US 10; here the source column is Adidas, so US 10 stays 27.1 and still lands on Clarks 10.
Terrace vs crepe is the real fork. Samba OG is TTS length but narrow; Gazelle often feels a half long for narrow/average feet; Campus 00s and Ultraboost follow their own volume. Wallabee is a roomy moccasin last; Desert Boot is a chukka with break-in. A chart-matched Samba 10 can still pinch where a Wallabee 10 feels loose — same US, different last. Do not half-up Samba for width and then treat that larger number as the Clarks ticket.
Convert from the Adidas size that fits in length. If you already downsize Gazelle, that is a terrace length quirk — do not auto-downsize Desert Boot. Half a size on this table is ~4 mm (26.7 → 27.1 → 27.5 cm). Crepe packs out; that is break-in, not a reason to start a half short from a TTS Samba. Use 27.1 cm as the starting ticket, then pick Wallabee vs Desert Boot on volume.
Even when charts match, lasts differ. Check these guides:
Adidas: Samba OG · Gazelle · Ultraboost 1.0 · Campus 00s
Clarks: Wallabee · Desert Boot
Also compare Adidas to: Puma · Reebok · New Balance
Check prices: Adidas Clarks (paid link)
Clothes sizing uses a separate compare path.