Women's Ergonomic Footwear (Sandals, Clogs, Casual Shoes)
| FR Size (EU French) |
Foot Length (cm) |
Narrow Fit |
Regular Wide Fit |
| 35 |
22.5 |
✓ |
✓ |
| 36 |
23.0 |
✓ |
✓ |
| 37 |
23.5 |
✓ |
✓ |
| 38 |
24.0 |
✓ |
✓ |
| 39 |
24.5 |
✓ |
✓ |
| 40 |
25.0 |
✓ |
✓ |
| 41 |
25.5 |
- |
✓ |
Men's Ergonomic Footwear (Sandals, Clogs, All Season Shoes)
| FR Size (EU French) |
Foot Length (cm) |
Narrow Fit |
Regular Wide Fit |
| 40 |
25.0 |
✓ |
✓ |
| 41 |
25.7 |
✓ |
✓ |
| 42 |
26.3 |
✓ |
✓ |
| 43 |
27.0 |
✓ |
✓ |
| 44 |
27.7 |
✓ |
✓ |
| 45 |
28.3 |
- |
✓ |
| 46 |
29.0 |
- |
✓ |
Kids & Teenagers Footwear
| FR Kids Size |
Foot Length (cm) |
Toddler |
Junior Teen |
| 24 |
15.0 |
✓ |
- |
| 26 |
16.5 |
✓ |
- |
| 28 |
18.0 |
✓ |
- |
| 30 |
19.5 |
- |
✓ |
| 32 |
21.0 |
- |
✓ |
| 34 |
22.0 |
- |
✓ |
Cotton Socks Size Guide
| Sock Size |
Fit FR Shoe Size |
Ankle Circumference (cm) |
| S |
35–37 |
18–21 |
| M |
38–41 |
21–24 |
| L |
42–45 |
24–27 |
| XL |
46+ |
27–30 |
Insoles & Foot Care Accessories
| Insole Size |
Matched FR Shoe Size |
Insole Length (cm) |
| XS |
35–36 |
22.8 |
| S |
37–38 |
23.8 |
| M |
39–41 |
25.2 |
| L |
42–44 |
26.8 |
| XL |
45–46 |
28.5 |
* All measurements are in centimeters, standard sizing for France & European regions.
* Birkenstock features ergonomic wide cork footbed; pick one size up if you have wide feet.
* Narrow / Regular width options available for most sandal & clog styles.
* Minor length differences may exist due to leather material and shoe design.
