Converse vs Nike Shoe Size Comparison
Nike runs about 0.5 sizes smaller than Converse, so start by checking up from your usual size. The estimate uses a fit-offset difference of about 4mm plus each brand's fit evidence — not the size labels alone. Use the table below to convert any Converse US size to a starting size in Nike, with UK, EU and CM alongside.
Converse → Nike size chart
| Converse US | Nike US | Nike range | Nike UK | Nike EU | Nike 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 Converse and Nike differ
Converse runs ~0.5 size smaller than Nike.
That works out to roughly 4mm of real shoe length. We map every size through foot length in millimetres — the canonical axis — and then re-apply each brand's 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. See how we calculate for how we measure fit offsets.