👟 Brand to Brand
Under Armour to UGG Shoe Size Conversion
Switching from Under Armour to UGG? Under Armour runs small and UGG runs large, so the size you order changes. Here's the full chart.
A Under Armour 9.5 works out to a UGG 8.5 — about a full size down. The chart below has every size.
Under Armour → UGG: size down a full size
A Under Armour 9.5 is a UGG 8.5.
Find your Under Armour size on the left, read across for UGG:
| Under Armour size | UGG size | UK | EU | Foot (cm) |
|---|---|---|---|---|
| 7 | 6 | 5.5 | 37 | 23.5 |
| 7.5 | 6.5 | 6 | 38 | 24.3 |
| 8 | 7 | 6.5 | 38.5 | 24.7 |
| 8.5 | 7.5 | 7 | 39.5 | 25.1 |
| 9 | 8 | 7.5 | 41 | 25.9 |
| 9.5 | 8.5 | 8 | 41.5 | 26.3 |
| 10 | 9 | 8.5 | 42.5 | 26.7 |
| 10.5 | 9.5 | 9 | 43 | 27.1 |
| 11 | 10 | 9.5 | 43.5 | 27.5 |
| 11.5 | 10.5 | 10 | 44 | 27.9 |
| 12 | 11 | 10.5 | 44.5 | 28.3 |
| 12.5 | 11.5 | 11 | 45.5 | 28.7 |
| 13 | 12 | 11.5 | 46 | 29.1 |
| 13.5 | 12.5 | 12 | 47 | 29.5 |
| 14 | 13 | 12.5 | 47.5 | 29.9 |
| 14.5 | 13.5 | 13 | 48 | 30.3 |
| 15 | 14 | 13.5 | 49 | 31.1 |
| 15.5 | 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. UGG runs about half a size large and moulds to the foot — size down half, or a full size for slippers.
UGG to Under Armour → · Under Armour chart · UGG chart · Brand finder
What is a Under Armour 9.5 in UGG?
A Under Armour 9.5 is about a UGG 8.5 — they share a foot length of roughly 26.3 cm (UK 8, EU 41.5).
Do Under Armour and UGG fit the same?
No — Under Armour runs small and UGG runs large, so size down a full size when you switch.
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