Adidas vs ASICS Shoe Size Comparison
ASICS fits about the same as Adidas, so keep your usual size as the starting point. The gap is about 0mm in measured shoe length plus each brand fit bias. Use the table below to convert any Adidas US size to a starting size in ASICS, with UK, EU and CM alongside.
Adidas to ASICS size chart
| Adidas US | ASICS US | ASICS range | ASICS UK | ASICS EU | ASICS CM |
|---|---|---|---|---|---|
| 7 | 7 | 6-8 | 6 | 37 | 24.5 |
| 8 | 8 | 7-9 | 7 | 38 | 25.5 |
| 9 | 9 | 8-10 | 8 | 39 | 26 |
| 10 | 10 | 9-11 | 9 | 41 | 27 |
| 11 | 11 | 10-12 | 10 | 42 | 28 |
| 12 | 12 | 11-13 | 11 | 43 | 29 |
| 13 | 13 | 12-14 | 12 | 44 | 29.5 |
Data confidence
Why Adidas and ASICS differ
Adidas and ASICS are close at the brand level. We still map every size through foot length in millimetres, then apply each brand empirical fit offset.
Brand-level estimate: per-model fit can vary by a full size or more within a brand.