Adidas vs ASICS Shoe Size Comparison

ASICS fits about the same as Adidas, so keep your usual size as the starting point. The estimate uses a fit-offset difference of about 0mm plus each brand's fit evidence — not the size labels alone. Use the table below to convert any Adidas US size to a starting size in ASICS, with UK, EU and CM alongside.

Adidas → ASICS size chart

Adidas US men's size mapped to a starting size in ASICS, with UK, EU and CM.
Adidas US ASICS US ASICS range ASICS UK ASICS EU ASICS CM
7 7 6–8 6 37 24.5
8 8 7–9 7 38 25.5
9 9 8–10 8 39 26
10 10 9–11 9 41 27
11 11 10–12 10 42 28
12 12 11–13 11 43 29
13 13 12–14 12 44 29.5

Data confidence

Why Adidas and ASICS differ

Adidas and ASICS run about the same size.

That works out to roughly 0mm 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.