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Under Armour to Crocs Shoe Size Conversion
Switching from Under Armour to Crocs? Under Armour runs small and Crocs runs true to size, so the size you order changes. Here's the full chart.
Under Armour runs 0.5 size larger than Crocs, so you may need to size down when switching.
Size up 0.5 moving to Crocs
Crocs runs smaller — order half a size larger than your Under Armour size.
Find your Under Armour size on the left, read across for Crocs:
| Under Armour size | Crocs 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. Crocs are sized in unisex M/W and run roomy — between sizes, size down.
Crocs to Under Armour → · Under Armour chart · Crocs chart · Brand finder
What is a Under Armour 10.5 in Crocs?
A Under Armour 10.5 is about a Crocs 10 — they share a foot length of roughly 27.5 cm (UK 9.5, EU 43.5).
Do Under Armour and Crocs fit the same?
Not quite — Crocs runs about 0.5 size smaller than Under Armour.
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