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 → Reebok
Static conversion table (crawlable). Interactive tool above uses the same cm matching.
| Reebok 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 |
Reebok US 10 is 27.1 cm; Clarks’ nearest US is 10 (EU 44). US 9.5 is 26.7 cm; US 10.5 is 27.5 cm. Club C 85 is a tennis sneaker last; Wallabee and Desert Boot are crepe chukkas. The 1:1 US match is a length ticket out of a cupsole into a moccasin/chukka construction.
Club C on this site tracks TTS versus Dunk/AJ1. Wallabee often feels roomy in the forefoot with a different heel; Desert Boot is a slimmer chukka. Taking Club C 10 into Wallabee 10 because the chart matches can still leave the Wallabee feeling longer underfoot because of the crepe and the last shape, not because Clarks printed a bigger centimeter.
If Club C is snug at 10, the next Reebok row is 10.5 at 27.5 cm — use that only for the sneaker. For Clarks, start at US 10 from 27.1 cm and read the Wallabee/Desert guides instead of importing a tennis-shoe half-up into a boot that may already feel long.
Even when charts match, lasts differ. Check these guides:
Reebok: Club C 85
Clarks: Wallabee · Desert Boot
Check prices: Reebok Clarks (paid link)
Clothes sizing uses a separate compare path.