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Allbirds to Brooks Shoe Size Conversion
Switching from Allbirds to Brooks? Allbirds runs true to size and Brooks runs true to size, so the size you order changes. Here's the full chart.
Because Allbirds and Brooks share the same fit tendency, your size carries straight across: a Allbirds 9 is a Brooks 9.
Allbirds and Brooks run the same
Order the same number — a Allbirds 9 is a Brooks 9.
Find your Allbirds size on the left, read across for Brooks:
| Allbirds size | Brooks size | UK | EU | Foot (cm) |
|---|---|---|---|---|
| 6.5 | 6.5 | 5.5 | 37 | 23.5 |
| 7 | 7 | 6 | 38 | 24.3 |
| 7.5 | 7.5 | 6.5 | 38.5 | 24.7 |
| 8 | 8 | 7 | 39.5 | 25.1 |
| 8.5 | 8.5 | 7.5 | 41 | 25.9 |
| 9 | 9 | 8 | 41.5 | 26.3 |
| 9.5 | 9.5 | 8.5 | 42.5 | 26.7 |
| 10 | 10 | 9 | 43 | 27.1 |
| 10.5 | 10.5 | 9.5 | 43.5 | 27.5 |
| 11 | 11 | 10 | 44 | 27.9 |
| 11.5 | 11.5 | 10.5 | 44.5 | 28.3 |
| 12 | 12 | 11 | 45.5 | 28.7 |
| 12.5 | 12.5 | 11.5 | 46 | 29.1 |
| 13 | 13 | 12 | 47 | 29.5 |
| 13.5 | 13.5 | 12.5 | 47.5 | 29.9 |
| 14 | 14 | 13 | 48 | 30.3 |
| 14.5 | 14.5 | 13.5 | 49 | 31.1 |
| 15 | 15 | 14 | 49.5 | 31.5 |
⚠️ Fit varies by model. Allbirds runs true to size; half sizes are rounded, so go to the nearest whole. Brooks runs true to size with a generous toe box; multiple widths are offered.
Brooks to Allbirds → · Allbirds chart · Brooks chart · Brand finder
What is a Allbirds 9 in Brooks?
A Allbirds 9 is about a Brooks 9 — they share a foot length of roughly 26.3 cm (UK 8, EU 41.5).
Do Allbirds and Brooks fit the same?
Roughly, yes — both run true to size, so the same number fits.
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