Birkenstock Size Chart: US, UK, EU & CM Conversion (Men’s & Women’s)

Sep 10, 2026

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Marco Bianchi is a personal shopping advisor and sizing specialist at Cecile Milan Journal, focused on how fit differs from one brand — and one model — to the next. Years spent fitting customers across Nike, Adidas, New Balance and other major sneaker brands inform his brand-to-brand sizing comparisons, model-specific fit notes and practical advice for readers converting their usual size between brands.

Birkenstock sizes its footbeds primarily by EU (Continental) size, with US and UK men’s/women’s labels layered on top — and most people find Birkenstocks run true to size to slightly roomy. Use the table below to convert between US, UK, EU and CM (footbed length) before you order. If you’re between two sizes, see our Birkenstock sizing guide.

Birkenstock Boston suede clog in sandcastle

Birkenstock Size Chart

Footbed length (CM) is the most reliable column — Birkenstock footbeds are shaped, not just scaled, so matching your actual foot length matters more here than with a laced sneaker.

Birkenstock sizing — EU, UK, US Men’s, US Women’s, CM
EU	UK	US Men’s	US Women’s	CM
35	2.5	3–3.5	4–4.5	22.5
36	3.5	4–4.5	5–5.5	23
37	4.5	5–5.5	6–6.5	24
38	5	6–6.5	7–7.5	24.5
39	5.5	7–7.5	8–8.5	25
40	6.5	8–8.5	9–9.5	26
41	7.5	9–9.5	10–10.5	26.5
42	8	10–10.5	11–11.5	27
43	9	11–11.5	12–12.5	28
44	9.5	12–12.5	—	28.5
45	10.5	13–13.5	—	29
46	11.5	14–14.5	—	30
47	12	15–15.5	—	30.5
48	13	16–16.5	—	31

How to Use This Chart

Measure your foot length in centimeters from heel to the tip of your longest toe, standing rather than seated, and match it to the CM column — Birkenstock’s EU sizes each cover a half-size range on both the men’s and women’s US scale, which is why the table lists two US numbers per row. If you’re between two footbed lengths, most people size up rather than down, since a slightly larger footbed breaks in more comfortably than one that’s too short.

Frequently Asked Questions

Does Birkenstock run true to size?

Birkenstock generally runs true to size to slightly roomy. Many people find their ideal fit by sizing down from their usual sneaker size, since the cork footbed molds to the foot rather than needing extra room like a laced shoe.

Is Birkenstock sizing the same for men and women?

Birkenstock uses one shared EU footbed scale for most styles, with separate men’s and women’s US labels mapped onto it — a men’s US 8 and a women’s US 9.5 both correspond to EU 41.

What EU size is a US men’s 10 in Birkenstock?

A US men’s 10 falls in the EU 42 footbed, roughly UK 8, at about 27 cm footbed length.