Size Guide For On Running Shoes
On Running fits true to size on most models. The Cloud series has a relatively narrow but very comfortable fit. This applies to the Cloudtilt, Cloudzonde and Cloudmonster. Use the size chart on this page for men and women, with conversion from US to UK, EU and CM.
On Running sizing: men vs women
On Running uses separate size ranges for men and women. The men’s line doesn’t run fully parallel to the women’s line, which starts at US 5 (EU 36). Want to compare On Running with models like the Air Max 1 or the brand HOKA? Use our size converter.
Difference between On Running men’s and women’s sizes
On Running fits similarly to Nike in length but runs slightly narrower. HOKA is roomier with more volume in the forefoot. The difference between men’s and women’s sizes averages 1.5 US sizes at the same foot length. Always use the EU column as a guide when switching from another brand.
Convert size
Use our Size Converter to see which On Running women’s size corresponds to which men’s size.
How to use the On Running size chart?
Look up your size and check the EU value. Unsure about the size? Our brand comparison tool shows you exactly which On Running size matches Nike or Asics, for example.
Size chart On Running
On Running shoes ➡ Men
| US | UK | EU | CM |
|---|---|---|---|
| 7 | 6.5 | 40 | 25 |
| 7.5 | 7 | 40.5 | 25.5 |
| 8 | 7.5 | 41 | 26 |
| 8.5 | 8 | 42 | 26.5 |
| 9 | 8.5 | 42.5 | 27 |
| 9.5 | 9 | 43 | 27.5 |
| 10 | 9.5 | 44 | 28 |
| 10.5 | 10 | 44.5 | 28.5 |
| 11 | 10.5 | 45 | 29 |
| 11.5 | 11 | 46 | 29.5 |
| 12 | 11.5 | 47 | 30 |
| 12.5 | 12 | 47.5 | 30.5 |
| 13 | 12.5 | 48 | 31 |
On Running shoes ➡ Women
| US | UK | EU | CM |
|---|---|---|---|
| 5 | 3 | 36 | 22 |
| 5.5 | 3.5 | 36.5 | 22.5 |
| 6 | 4 | 37 | 23 |
| 6.5 | 4.5 | 37.5 | 23.5 |
| 7 | 5 | 38 | 24 |
| 7.5 | 5.5 | 38.5 | 24.5 |
| 8 | 6 | 39 | 25 |
| 8.5 | 6.5 | 40 | 25.5 |
| 9 | 7 | 40.5 | 26 |
| 9.5 | 7.5 | 41 | 26.5 |
| 10 | 8 | 42 | 27 |
| 10.5 | 8.5 | 42.5 | 27.5 |
| 11 | 9 | 43 | 28 |
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