👟 Brand to Brand
Jordan to On Shoe Size Conversion
Switching from Jordan to On? Jordan runs small and On runs true to size, so the size you order changes. Here's the full chart.
Jordan runs 0.5 size larger than On, so you may need to size down when switching.
Size up 0.5 moving to On
On runs smaller — order half a size larger than your Jordan size.
Find your Jordan size on the left, read across for On:
| Jordan size | On size | UK | EU | Foot (cm) |
|---|---|---|---|---|
| 6.5 | 6 | 5.5 | 37 | 23.5 |
| 6.5 | 6 | 5.5 | 37.5 | 23.9 |
| 7 | 6.5 | 6 | 38 | 24.3 |
| 7.5 | 7 | 6.5 | 38.5 | 24.7 |
| 8 | 7.5 | 7 | 39.5 | 25.1 |
| 8 | 7.5 | 7 | 40 | 25.5 |
| 8.5 | 8 | 7.5 | 41 | 25.9 |
| 9 | 8.5 | 8 | 41.5 | 26.3 |
| 9.5 | 9 | 8.5 | 42.5 | 26.7 |
| 10 | 9.5 | 9 | 43 | 27.1 |
| 10.5 | 10 | 9.5 | 43.5 | 27.5 |
| 11 | 10.5 | 10 | 44 | 27.9 |
| 11.5 | 11 | 10.5 | 44.5 | 28.3 |
| 12 | 11.5 | 11 | 45.5 | 28.7 |
| 12.5 | 12 | 11.5 | 46 | 29.1 |
| 13 | 12.5 | 12 | 47 | 29.5 |
| 13.5 | 13 | 12.5 | 47.5 | 29.9 |
| 14 | 13.5 | 13 | 48 | 30.3 |
| 14 | 13.5 | 13 | 48.5 | 30.7 |
| 14.5 | 14 | 13.5 | 49 | 31.1 |
| 15 | 14.5 | 14 | 49.5 | 31.5 |
⚠️ Fit varies by model. Air Jordan uses Nike's lasts and runs about half a size small; the same size-up-half advice applies. On (On Running) runs true to size for most, with a snug, performance fit.
On to Jordan → · Jordan chart · On chart · Brand finder
What is a Jordan 10.5 in On?
A Jordan 10.5 is about a On 10 — they share a foot length of roughly 27.5 cm (UK 9.5, EU 43.5).
Do Jordan and On fit the same?
Not quite — On runs about 0.5 size smaller than Jordan.
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