Reebok to Brooks shoe size

The short answer

Reebok 9 is Brooks 9 by the two brands' own charts. 0 of 17 Reebok sizes land on a different label at Brooks.

At least one of the two brands publishes no foot length, so the rows line up the US size both charts print. Treat it as the label conversion, not a fit.

Every Reebok size read across to Brooks. US women's sizes on the left, US women's on the right.
Reebok	Brooks, by chart	Same label	Brooks also prints
3.5	not made	not published	not published
4	not made	not published	not published
4.5	not made	not published	not published
5	5	not published	UK 3 · EU 35.5
5.5	5.5	not published	UK 3.5 · EU 36
6	6	not published	UK 4 · EU 36.5
6.5	6.5	not published	UK 4.5 · EU 37.5
7	7	not published	UK 5 · EU 38
7.5	7.5	not published	UK 5.5 · EU 38.5
8	8	not published	UK 6 · EU 39
8.5	8.5	not published	UK 6.5 · EU 40
9	9	not published	UK 7 · EU 40.5
9.5	9.5	not published	UK 7.5 · EU 41
10	10	not published	UK 8 · EU 42
10.5	10.5	not published	UK 8.5 · EU 42.5
11	11	not published	UK 9 · EU 43
11.5	11.5	not published	UK 9.5 · EU 44
12	12	not published	UK 10 · EU 44.5
12.5	12.5	not published	UK 10.5 · EU 45
13	13	not published	UK 11 · EU 45.5
13.5	not made	not published	not published
14	not made	not published	not published

Neither chart publishes the body each size is built for, so the rows line up the labels. Tinted rows change label or sit between two sizes. 5 sizes have no counterpart on the Brooks chart. Read from the two charts only; no formula and no averaging.

What wearers say

Charts describe a garment. People who own both brands describe a fit, and their answer ranks above this table once five of them stand behind it. Pick your size in the converter to see whether there are enough yet.

Open in the converter Add an item you own

Sources

Reebok size guide, read on 2026-09-18. Reebok on TrueToSize
Brooks size guide, read on 2026-09-17. Brooks on TrueToSize

Brooks to Reebok