The following ski boot size chart will help you determine what your alpine ski boot size is relative to your shoe size. Ski boots are sized using the Mondopoint system, which is based on the metric system and is generally in cm. You will sometimes see the Mondopoint size in mm, which would turn a 29.5 into a 295, a 30 into a 300, etc.

Mens Shoe Size
(Canada/USA)
Mondopoint
(cm)
Europe U.K. Womens Shoe Size
(USA)
8 15 25 7 -----
9 16 26 8 -----
10 17 27 9 -----
11 17.5 28 10 -----
12 18.5 29 11 -----
13 19.5 30.5 12 -----
13.5 20 31 13 -----
1 20.5 32 13.5 -----
2 21 33 1 -----
3 21.5 34 2 -----
4 22 35 3 5
4.5 22.5 36 3.5 5.5
5 23 36.5 4 6
5.5 23.5 37 4.5 6.5
6 24 38 5 7
6.5 24.5 38.5 5.5 7.5
7 25 39 6 8
7.5 25.5 40 6.5 8.5
8 26 40.5 7 9
8.5 26.5 41 7.5 9.5
9 27 42 8 10
9.5 27.5 42.5 8.5 10.5
10 28 43 9 11
10.5 28.5 44 9.5 11.5
11 29 44.5 10 12
11.5 29.5 45 10.5 -----
12 30 45.5 11 -----
12.5 30.5 46 11.5 -----
13 31 47 12 -----
13.5 31.5 47.5 12.5 -----
14 32 48 13 -----
14.5 32.5 48.5 13.5 -----
15 33 49 14 -----
15.5 33.5 50 14.5 -----
16 34 51 15 -----

Find international shoe size converter charts at ShoeSizingCharts.com