Vans vs ASICS Shoe Size Comparison
ASICS runs about half a US size larger than Vans, so you may need to size down. The gap is about 4mm in measured shoe length plus each brand fit bias. Use the table below to convert any Vans US size to a starting size in ASICS, with UK, EU and CM alongside.
Vans to ASICS size chart
| Vans US | ASICS US | ASICS range | ASICS UK | ASICS EU | ASICS CM |
|---|---|---|---|---|---|
| 7 | 6.5 | 5.5-7.5 | 5.5 | 36 | 24 |
| 8 | 7.5 | 6.5-8.5 | 6.5 | 37 | 25 |
| 9 | 8.5 | 7.5-9.5 | 7.5 | 39 | 26 |
| 10 | 9.5 | 8.5-10.5 | 8.5 | 40 | 26.5 |
| 11 | 10.5 | 9.5-11.5 | 9.5 | 41 | 27.5 |
| 12 | 11.5 | 10.5-12.5 | 10.5 | 43 | 28.5 |
| 13 | 12.5 | 11.5-13.5 | 11.5 | 44 | 29 |
Data confidence
Why Vans and ASICS differ
That works out to roughly 4mm of real shoe length. We map every size through foot length in millimetres and then re-apply each brand empirical fit offset, so the comparison reflects how the shoes actually fit rather than how they are labelled.
Brand-level estimate: per-model fit can vary by a full size or more within a brand.