👟 On
On Men's Size 9
A On men's size 9 fits like a standard US 9. Here's that in UK, EU and foot length, and what to order if you measure differently.
On runs true to size, so a men's On 9 is a standard US 9 (UK 8, EU 41.5, about 26.3 cm of foot). Order your usual size.
On 9 = US 9
UK 8 · EU 41.5 · foot ≈ 26.3 cm
What to order: your usual US size — a US 9 wearer takes a On 9.
| On size | Fits like (US) | UK | EU | Foot cm |
|---|---|---|---|---|
| 8 | 8 | 7 | 40 | 25.5 |
| 9 | 9 | 8 | 41.5 | 26.3 |
| 10 | 10 | 9 | 43 | 27.1 |
⚠️ On (On Running) runs true to size for most, with a snug, performance fit.
← On 8 · On 10 → · Women's On 9
Full On size chart → · Brand size finder →
What size is a On men's 9?
It fits like a standard US 9 — UK 8, EU 41.5, about 26.3 cm of foot length.
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