👟 Brand to Brand
UGG to adidas Shoe Size Conversion
Switching from UGG to adidas? UGG runs large and adidas runs small, 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 down 1 moving to adidas
adidas runs larger — order half a size smaller than your UGG size.
Find your UGG size on the left, read across for adidas:
| UGG size | adidas size | UK | EU | Foot (cm) |
|---|---|---|---|---|
| 6.5 | 7.5 | 5.5 | 37 | 23.5 |
| 6.5 | 7.5 | 5.5 | 37.5 | 23.9 |
| 7 | 8 | 6 | 38 | 24.3 |
| 7.5 | 8.5 | 6.5 | 38.5 | 24.7 |
| 8 | 9 | 7 | 39.5 | 25.1 |
| 8 | 9 | 7 | 40 | 25.5 |
| 8.5 | 9.5 | 7.5 | 41 | 25.9 |
| 9 | 10 | 8 | 41.5 | 26.3 |
| 9.5 | 10.5 | 8.5 | 42.5 | 26.7 |
| 10 | 11 | 9 | 43 | 27.1 |
| 10.5 | 11.5 | 9.5 | 43.5 | 27.5 |
| 11 | 12 | 10 | 44 | 27.9 |
| 11.5 | 12.5 | 10.5 | 44.5 | 28.3 |
| 12 | 13 | 11 | 45.5 | 28.7 |
| 12.5 | 13.5 | 11.5 | 46 | 29.1 |
| 13 | 14 | 12 | 47 | 29.5 |
| 13.5 | 14.5 | 12.5 | 47.5 | 29.9 |
| 14 | 15 | 13 | 48 | 30.3 |
| 14 | 15 | 13 | 48.5 | 30.7 |
| 14.5 | 15.5 | 13.5 | 49 | 31.1 |
| 15 | 16 | 14 | 49.5 | 31.5 |
⚠️ Fit varies by model. UGG runs about half a size large and moulds to the foot — size down half, or a full size for slippers. adidas generally runs about half a size small, particularly lifestyle and Ultraboost models; Sambas and Gazelles run long and narrow.
adidas to UGG → · UGG chart · adidas chart · Brand finder
What is a UGG 10.5 in adidas?
A UGG 10.5 is about a adidas 11.5 — they share a foot length of roughly 27.5 cm (UK 9.5, EU 43.5).
Do UGG and adidas fit the same?
Not quite — adidas runs about 1 size larger than UGG.
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