👟 Brand to Brand
Under Armour to Brooks Shoe Size Conversion
Switching from Under Armour to Brooks? Under Armour runs small and Brooks runs true to size, so the size you order changes. Here's the full chart.
Under Armour runs 0.5 size larger than Brooks, so you may need to size down when switching.
Size up 0.5 moving to Brooks
Brooks runs smaller — order half a size larger than your Under Armour size.
Find your Under Armour size on the left, read across for Brooks:
| Under Armour size | Brooks 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. Under Armour tends to run about half a size small, especially in performance trainers. Brooks runs true to size with a generous toe box; multiple widths are offered.
Brooks to Under Armour → · Under Armour chart · Brooks chart · Brand finder
What is a Under Armour 10.5 in Brooks?
A Under Armour 10.5 is about a Brooks 10 — they share a foot length of roughly 27.5 cm (UK 9.5, EU 43.5).
Do Under Armour and Brooks fit the same?
Not quite — Brooks runs about 0.5 size smaller than Under Armour.
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