👟 On
On Men's Size 8
A On men's size 8 fits like a standard US 8. 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 8 is a standard US 8 (UK 7, EU 39.5, about 25.1 cm of foot). Order your usual size.
On 8 = US 8
UK 7 · EU 39.5 · foot ≈ 25.1 cm
What to order: your usual US size — a US 8 wearer takes a On 8.
| On size | Fits like (US) | UK | EU | Foot cm |
|---|---|---|---|---|
| 7 | 7 | 6 | 38 | 24.3 |
| 8 | 8 | 7 | 40 | 25.5 |
| 9 | 9 | 8 | 41.5 | 26.3 |
⚠️ On (On Running) runs true to size for most, with a snug, performance fit.
← On 7 · On 9 → · Women's On 8
Full On size chart → · Brand size finder →
What size is a On men's 8?
It fits like a standard US 8 — UK 7, EU 39.5, about 25.1 cm of foot length.
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