ASICS vs Converse Shoe Size Comparison
Converse runs about 1 US size smaller than ASICS, so you may need to size up. The gap is about 8mm in measured shoe length plus each brand fit bias. Use the table below to convert any ASICS US size to a starting size in Converse, with UK, EU and CM alongside.
ASICS to Converse size chart
| ASICS US | Converse US | Converse range | Converse UK | Converse EU | Converse CM |
|---|---|---|---|---|---|
| 7 | 8 | 7-9 | 7 | 38 | 25.5 |
| 8 | 9 | 8-10 | 8 | 39 | 26 |
| 9 | 10 | 9-11 | 9 | 41 | 27 |
| 10 | 11 | 10-12 | 10 | 42 | 28 |
| 11 | 12 | 11-13 | 11 | 43 | 29 |
| 12 | 13 | 12-14 | 12 | 44 | 29.5 |
| 13 | 14 | 13-15 | 13 | 46 | 30.5 |
Data confidence
Why ASICS and Converse differ
That works out to roughly 8mm 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.