Birkenstock Size Guide

To find the right size birkenstock:

  • Measure the length of your foot by standing on a flat surface and measure the distance of the back of your heel to your longest toe
  • Add 10mm to your foot length to ensure comfortability
  • Measure the width of your foot across the broadest point to determine if you need a regular fit or narrow width.

Regular Sizing

Adult Sizes Footbed Length Footbed Width
35 Regular 225mm 89mm
36 Regular 230mm 91mm
37 Regular 240mm 93mm
38 Regular 245mm 95mm
39 Regular 250mm 97mm
40 Regular 260mm 99mm
41 Regular 265mm 101mm
42 Regular 270mm 102mm
>43 Regular 280mm 103mm
44 Regular 285mm 107mm
45 Regular 290mm 109mm
46 Regular 300mm 113mm
47 Regular 305mm 115mm
48 Regular 310mm 117mm
49 Regular 315mm 119mm
50 Regular 325mm 121mm

Narrow Sizing

Adult Sizes Footbed Length Footbed Width
35 Narrow 225mm 85mm
36 Narrow 230mm 87mm
37 Narrow 240mm 89mm
38 Narrow 245mm 91mm
39 Narrow 250mm 93mm
40 Narrow 260mm 95mm
41 Narrow 265mm 97mm
42 Narrow 270mm 99mm
43 Narrow 280mm 101mm
44 Narrow 285mm 103mm
45 Narrow 290mm 105mm
46 Narrow 300mm 107mm
47 Narrow 305mm 109mm
48 Narrow 310mm 111mm
49 Narrow 315mm 113mm
50 Narrow 320mm 115mm