On Running Men's to Women's Shoe Size
This chart converts On Running men's to women's shoe sizes. A women's US size runs about 1.5 larger than the men's size for the same foot, matched here by actual foot length so the mapping is exact rather than a flat offset.
Foot length units:
| US Men | US Women | UK | EU | CM (JP) | Foot length (cm) |
|---|---|---|---|---|---|
| 7 | 8 | 6.5 | 40 | 25 | 25 |
| 7.5 | 8.5 | 7 | 40.5 | 25.5 | 25.5 |
| 8 | 9 | 7.5 | 41 | 26 | 26 |
| 8.5 | 9.5 | 8 | 42 | 26.5 | 26.5 |
| 9 | 10 | 8.5 | 42.5 | 27 | 27 |
| 9.5 | 10.5 | 9 | 43 | 27.5 | 27.5 |
| 10 | 11 | 9.5 | 44 | 28 | 28 |
| 10.5 | — | 10 | 44.5 | 28.5 | 28.5 |
| 11 | — | 10.5 | 45 | 29 | 29 |
| 11.5 | — | 11 | 46 | 29.5 | 29.5 |
| 12 | — | 11.5 | 47 | 30 | 30 |
| 12.5 | — | 12 | 47.5 | 30.5 | 30.5 |
| 13 | — | 12.5 | 48 | 31 | 31 |
| 14 | — | 13.5 | 49 | 31.5 | 31.5 |
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Frequently asked questions
How many sizes apart are On Running men's and women's shoes?
About 1.5 US sizes — a On Running women's size is roughly 1.5 larger than the men's size for the same foot length. The chart above maps them exactly by foot length.