Birkenstock to 361° shoe size

The short answer

Birkenstock 41 is 361° 10 or 10.5 by the two brands' own charts.

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 Birkenstock size read across to 361°. EU sizes on the left, US women's on the right.
Birkenstock	361°, by chart	Same label	361° also prints
35	not made	not published	not published
36	5.5	not published	US men's 4 · UK 3.5 · EU 36 · CM / JP 23
37	6.5	not published	US men's 5 · UK 4 · EU 37.5 · CM / JP 23.5
38	7.5	not published	US men's 6 · UK 5 · EU 38.5 · CM / JP 24
39	8 or 8.5	not published	US men's 6.5 · UK 5.5 · EU 39 · CM / JP 24.5
40	9 or 9.5	not published	US men's 7.5 · UK 6.5 · EU 40.5 · CM / JP 25.5
41	10 or 10.5	not published	US men's 8.5 · UK 7.5 · EU 42 · CM / JP 26.5
42	11 or 11.5	not published	US men's 9.5 · UK 8.5 · EU 43 · CM / JP 27.5
43	12 or 12.5	not published	US men's 10.5 · UK 9.5 · EU 44.5 · CM / JP 28.5
44	13 or 13.5	not published	US men's 11.5 · UK 10.5 · EU 45.5 · CM / JP 29.5
48	15.5	not published	US men's 14 · UK 13 · EU 48.5 · CM / JP 31.5

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. 1 sizes have no counterpart on the 361° 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.

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Sources

Birkenstock size guide, read on 2026-09-18.
361° size guide, read on 2026-09-25.

361° to Birkenstock