Men's Footwear
US Size	Birkenstock® Size
5 – 5½	38
6 – 6½	39
7 – 7½	40
8 – 8½	41
9– 9½	42
10 – 10½	43
11 – 11½	44
12 – 12½	45
13 – 13½	46
14 – 14½	47
15 – 15½	48
16 – 16½	49
17 – 17½	50

Women's Footwear
US Size	Birkenstock® Size
2 – 2½	33
3 – 3½	34
4 – 4½	35
5 – 5½	36
6– 6½	37
7 – 7½	38
8 – 8½	39
9 – 9½	40
10 – 10½	41
11 – 11½	42
12 – 12½	43
13 – 13½	44

Kid's Footwear
US Size	Birkenstock® Size
7 – 7½	24
8	25
8½	26
9 – 9½	27
10– 10½	28
11 – 11½	29
12 – 12½	30
13– 13½	31
1 – 1½	32
2 – 2½	33
3 – 3½	34
4 – 4½	35
5 – 5½	36
6 – 6½	37