Birkenstock Size Chart Guide: Convert EU to US & UK Shoe Sizes with Ease

Birkenstock, renowned for their anatomically designed footwear, uses European sizing as their standard measurement system. This guide will help shoppers navigate the sizing complexities and find their perfect fit across different measurement systems.

Table Of Contents

Understanding Birkenstock Width Options

Before diving into specific sizes, it's important to understand that Birkenstock offers two width options:

For Women:

Regular Width: Equivalent to American wide (C-D)
Narrow Width: Equivalent to American medium/regular (A-B)

For Men:

Regular Width: Equivalent to American wide (D-EE)
Narrow Width: Equivalent to American medium/regular (B-C)

Women's Birkenstock Size Chart

EU Size	US Size	Foot Length (IN/CM)	Regular Width (IN/CM)	Narrow Width (IN/CM)	UK Size
35	4/4.5	8.9/22.5	3.35-3.5/8.5-8.9	3.19-3.3/8.1-8.4	2.5
36	5/5.5	9.1/23.0	3.43-3.58/8.7-9.1	3.27-3.39/8.3-8.6	3.5
37	6/6.5	9.4/24.0	3.54-3.86/9.0-9.8	3.3-3.5/8.4-8.9	4.5
38	7/7.5	9.6/24.5	3.62-3.94/9.2-10.0	3.39-3.58/8.6-9.1	5
39	8/8.5	9.8/25.0	3.7-4.02/9.4-10.2	3.46-3.66/8.8-9.3	5.5
40	9/9.5	10.2/26.0	3.78-4.09/9.6-10.4	3.54-3.74/9.0-9.5	7
41	10/10.5	10.4/26.5	3.82-4.13/9.7-10.5	3.58-3.78/9.1-9.6	7.5
42	11/11.5	10.6/27.0	3.86-4.21/9.8-10.7	3.66-3.82/9.3-9.7	8
43	12/12.5	11.0/28.0	3.98-4.29/10.1-10.9	3.74-3.94/9.5-10.0	9

Men's Birkenstock Size Chart

EU Size	US Size	Foot Length (IN/CM)	Regular Width (IN/CM)	Narrow Width (IN/CM)	UK Size
39	6/6.5	9.8/25.0	3.7-4.02/9.4-10.2	3.46-3.66/8.8-9.3	5.5
40	7/7.5	10.2/26.0	3.78-4.09/9.6-10.4	3.54-3.74/9.0-9.5	7
41	8/8.5	10.4/26.5	3.82-4.13/9.7-10.5	3.58-3.78/9.1-9.6	7.5
42	9/9.5	10.6/27.0	3.86-4.21/9.8-10.7	3.66-3.82/9.3-9.7	8
43	10/10.5	11.0/28.0	3.98-4.29/10.1-10.9	3.74-3.94/9.5-10.0	9
44	11/11.5	11.2/28.5	4.06-4.37/10.3-11.1	3.82-4.0/9.7-10.2	9.5
45	12/12.5	11.4/29.0	4.13-4.45/10.5-11.3	3.9-4.1/9.9-10.4	10.5
46	13/13.5	11.8/30.0	4.21-4.53/10.7-11.5	3.98-4.17/10.1-10.6	11.5
47	14/14.5	12.0/30.5	4.29-4.61/10.9-11.7	4.06-4.25/10.3-10.8	12
48	15/15.5	12.2/31.0	4.37-4.69/11.1-11.9	4.13-4.33/10.5-11.0	13
49	16/16.5	12.6/32.0	4.45-4.76/11.3-12.1	4.21-4.41/10.7-11.2	14
50	17/17.5	12.8/32.5	4.53-4.84/11.5-12.3	4.29-4.49/10.9-11.4	14.5

Expert Sizing Tips

Stick to European Sizing: For optimal accuracy, shoppers should prioritize European (EU) sizing when selecting Birkenstock footwear. While conversion charts are helpful, direct EU sizing ensures the most reliable fit.
Width Consideration: The width of Birkenstock footwear is as crucial as the length. When selecting between regular and narrow widths, customers should consider both their foot width and personal comfort preferences.
Measurement Method: For the most accurate size selection, measuring both feet while standing is recommended, as feet tend to expand slightly under body weight. Measurements should be taken in the afternoon when feet are typically at their largest.
Break-in Period: New Birkenstock footwear typically requires a break-in period. The cork footbed will gradually mold to the wearer's foot shape, creating a custom fit over time.
Size Variations: Foot size can vary between different styles of Birkenstock footwear. Some collections may fit slightly differently than others, so customers should consider trying different sizes when exploring new styles.

Additional Considerations

The perfect Birkenstock fit should allow toes to move freely while maintaining proper arch support. The footbed's contours should align comfortably with the foot's natural shape, and the toes should not touch the front edge. When standing, there should be approximately 1/4 inch (5-6mm) of space both in front of the toes and behind the heel.

For those between sizes, it's generally recommended to size up rather than down, as slightly too large is preferable to too small when it comes to open-backed sandals and shoes. This ensures proper support for the arch and he