👟 Brand to Brand
adidas to UGG Shoe Size Conversion
Switching from adidas to UGG? adidas runs small and UGG runs large, so the size you order changes. Here's the full chart.
adidas runs 1 size larger than UGG, so you may need to size down when switching.
Size up 1 moving to UGG
UGG runs smaller — order half a size larger than your adidas size.
Find your adidas size on the left, read across for UGG:
| adidas size | UGG size | UK | EU | Foot (cm) |
|---|---|---|---|---|
| 6.5 | 5.5 | 5.5 | 37 | 23.5 |
| 6.5 | 5.5 | 5.5 | 37.5 | 23.9 |
| 7 | 6 | 6 | 38 | 24.3 |
| 7.5 | 6.5 | 6.5 | 38.5 | 24.7 |
| 8 | 7 | 7 | 39.5 | 25.1 |
| 8 | 7 | 7 | 40 | 25.5 |
| 8.5 | 7.5 | 7.5 | 41 | 25.9 |
| 9 | 8 | 8 | 41.5 | 26.3 |
| 9.5 | 8.5 | 8.5 | 42.5 | 26.7 |
| 10 | 9 | 9 | 43 | 27.1 |
| 10.5 | 9.5 | 9.5 | 43.5 | 27.5 |
| 11 | 10 | 10 | 44 | 27.9 |
| 11.5 | 10.5 | 10.5 | 44.5 | 28.3 |
| 12 | 11 | 11 | 45.5 | 28.7 |
| 12.5 | 11.5 | 11.5 | 46 | 29.1 |
| 13 | 12 | 12 | 47 | 29.5 |
| 13.5 | 12.5 | 12.5 | 47.5 | 29.9 |
| 14 | 13 | 13 | 48 | 30.3 |
| 14 | 13 | 13 | 48.5 | 30.7 |
| 14.5 | 13.5 | 13.5 | 49 | 31.1 |
| 15 | 14 | 14 | 49.5 | 31.5 |
⚠️ Fit varies by model. adidas generally runs about half a size small, particularly lifestyle and Ultraboost models; Sambas and Gazelles run long and narrow. UGG runs about half a size large and moulds to the foot — size down half, or a full size for slippers.
UGG to adidas → · adidas chart · UGG chart · Brand finder
What is a adidas 10.5 in UGG?
A adidas 10.5 is about a UGG 9.5 — they share a foot length of roughly 27.5 cm (UK 9.5, EU 43.5).
Do adidas and UGG fit the same?
Not quite — UGG runs about 1 size smaller than adidas.
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