Brooks vs Nike Shoe Size Comparison

Nike runs about 1 size larger than Brooks, so start by checking down from your usual size. The estimate uses a fit-offset difference of about 6mm plus each brand's fit evidence — not the size labels alone. Use the table below to convert any Brooks US size to a starting size in Nike, with UK, EU and CM alongside.

Brooks → Nike size chart

Brooks US men's size mapped to a starting size in Nike, with UK, EU and CM.
Brooks US Nike US Nike range Nike UK Nike EU Nike CM
7 8 6.5–9 7 38 25
8 9 7.5–10 8 39 26
9 10 8.5–11 9 40 27
10 11 9.5–12 10 42 27.5
11 12 10.5–13 11 43 28.5
12 13 11.5–14 12 44 29.5
13 14 12.5–15 13 45 30.5

Data confidence

Why Brooks and Nike differ

Brooks runs ~1 size larger than Nike.

That works out to roughly 6mm of real shoe length. We map every size through foot length in millimetres — the canonical axis — and then re-apply each brand's 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. See how we calculate for how we measure fit offsets.