👟 Brand to Brand
Brooks to UGG Shoe Size Conversion
Switching from Brooks to UGG? Brooks runs true to size and UGG runs large, so the size you order changes. Here's the full chart.
A Brooks 9 works out to a UGG 8.5 — about half a size down. The chart below has every size.
Brooks → UGG: size down half a size
A Brooks 9 is a UGG 8.5.
Find your Brooks size on the left, read across for UGG:
| Brooks size | UGG size | UK | EU | Foot (cm) |
|---|---|---|---|---|
| 6.5 | 6 | 5.5 | 37 | 23.5 |
| 7 | 6.5 | 6 | 38 | 24.3 |
| 7.5 | 7 | 6.5 | 38.5 | 24.7 |
| 8 | 7.5 | 7 | 39.5 | 25.1 |
| 8.5 | 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 |
| 14.5 | 14 | 13.5 | 49 | 31.1 |
| 15 | 14.5 | 14 | 49.5 | 31.5 |
⚠️ Fit varies by model. Brooks runs true to size with a generous toe box; multiple widths are offered. UGG runs about half a size large and moulds to the foot — size down half, or a full size for slippers.
UGG to Brooks → · Brooks chart · UGG chart · Brand finder
What is a Brooks 9 in UGG?
A Brooks 9 is about a UGG 8.5 — they share a foot length of roughly 26.3 cm (UK 8, EU 41.5).
Do Brooks and UGG fit the same?
No — Brooks runs true to size and UGG runs large, so size down half a size when you switch.
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