The sizes of flat sandals

The sizes of sandals are determined by two measures:

  • foot length (FL): diagonal length from the heel to the edge of the big toe;
  • foot width: the widest part of the footprint at its front part.

Important: sandals are such type of shoes, for which the length of the insole should be 0.5-1 (cm) longer that the foot length.

International standard of size range:

The size of shoes equals the foot length in millimeters. No corrections or allowances should be made in this standard, the size is determined strictly by the diagonal foot length.

In case when the foot length measure is in-between two sizes the result is rounded up to the bigger size with 0.5 (cm) accuracy.

Another system name: metric.

For example: with the foot length of 27 (cm) the size by ISO 3355-77 standard would be 27.

Women’s flat sandals* spravka
US Size spravka Foot length (in) spravka Foot length (cm) spravka
4 8 3/8 21.2
4.5 8 1/2 21.6
5 8 5/8 22
5.5 8 7/8 22.4
6 9 22.9
6.5 9 1/8 23.3
7 9 3/8 23.7
7.5 9 1/2 24.1
8 9 5/8 24.5
8.5 9 7/8 25
9 10 25.4
9.5 10 1/8 25.8
10 10 3/8 26.2
10.5 10 1/2 26.7
11 10 5/8 27.1
11.5 10 7/8 27.5
12 11 27.5
*
Men’s flat sandals* spravka
US Size spravka Foot length (in) spravka Foot length (cm) spravka
6 9 3/8 23.7
6.5 9 1/2 24.1
7 9 5/8 24.5
7.5 9 7/8 25
8 10 25.4
8.5 10 1/8 25.8
9 10 3/8 26.2
9.5 10 1/2 26.7
10 10 5/8 27.1
10.5 10 7/8 27.5
11 11 27.9
11.5 11 1/8 28.3
12 11 3/8 28.8
12.5 11 1/2 29.2
13 11 5/8 29.6
13.5 11 7/8 20
14 12 30.5
15 12 3/8 31.3
16 12 5/8 32.2
17 13 33
18 13 3/8 33.9
*