New Balance vs Brooks Shoe Size Comparison
Brooks runs about half a US size smaller than New Balance, so you may need to size up. The gap is about 2mm in measured shoe length plus each brand fit bias. Use the table below to convert any New Balance US size to a starting size in Brooks, with UK, EU and CM alongside.
New Balance to Brooks size chart
| New Balance US | Brooks US | Brooks range | Brooks UK | Brooks EU | Brooks CM |
|---|---|---|---|---|---|
| 7 | 7.5 | 6-8.5 | 6.5 | 37 | 25 |
| 8 | 8.5 | 7-9.5 | 7.5 | 38 | 25.5 |
| 9 | 9.5 | 8-10.5 | 8.5 | 40 | 26.5 |
| 10 | 10.5 | 9-11.5 | 9.5 | 41 | 27.5 |
| 11 | 11.5 | 10-12.5 | 10.5 | 42 | 28 |
| 12 | 12.5 | 11-13.5 | 11.5 | 43 | 29 |
| 13 | 13.5 | 12-14.5 | 12.5 | 45 | 30 |
Data confidence
Why New Balance and Brooks differ
That works out to roughly 2mm of real shoe length. We map every size through foot length in millimetres and then re-apply each brand empirical fit offset, so the comparison reflects how the shoes actually fit rather than how they are labelled.
Brand-level estimate: per-model fit can vary by a full size or more within a brand.