Kizik Size & Fit Guide

True to size · Accommodating hands-free toe box · Wide (2E) & Extra Wide (4E) in select styles

Find your Kizik size with Kizik’s official women’s, men’s and kids’ charts by foot length and Kizik’s width advice — or stop in for a Brannock fitting at our Kettering, Ohio store.

How it fits

Kizik says its shoes are carefully tested to fit true to industry-standard sizing.

Many Kizik standard widths have a comfortable, accommodating fit thanks to the hands-free toe box design. Thin socks give a slightly less snug fit.

Between sizes

Between sizes? Size up if you wear thick socks or orthotics, or you're on your feet all day. Choose the smaller size if you like a snug fit.

Widths

Width Kizik’s advice
Standard (M) Start here — many standard widths fit generously.
Wide (2E) A great place to start if you usually need a wide fit. Between standard and wide? Try Wide in your regular size.
Extra Wide (4E) The most generous fit, with maximum volume and width in the forefoot — good for very high arches or insteps.

Wide shows as “W” in our size picker on the styles we carry in wide.

Women

US Women US Men UK EU Foot length (cm) Foot length (in)
5½ 4 3½ 36 22 8.66"
6 4½ 4 37 22.5 8.86"
6½ 5 4½ 37.5 23 9.06"
7 5½ 5 38 23.5 9.25"
7½ 6 5½ 38.5 24 9.45"
8 6½ 6 39.5 24.5 9.65"
8½ 7 6½ 40 25 9.84"
9 7½ 7 40.5 25.5 10.04"
9½ 8 7½ 41.5 26 10.24"
10 8½ 8 42 26.5 10.43"
10½ 9 8½ 42.5 27 10.63"
11 9½ 9 43 27.5 10.83"
11½ 10 9½ 44 28 11.02"
12 10½ 10 44.5 28.5 11.22"
12½ 11 10½ 45 29 11.42"
13 11½ 11 45.5 29.5 11.61"
13½ 12 11½ 46.5 30 11.81"
14 12½ 12 47 30.5 12.01"
15 13 12½ 47.5 31 12.20"

Men

US Men US Women UK EU Foot length (cm) Foot length (in)
4 5½ 3 36 22 8.66"
4½ 6 3½ 37 22.5 8.86"
5 6½ 4 37.5 23 9.06"
5½ 7 4½ 38 23.5 9.25"
6 7½ 5 38.5 24 9.45"
6½ 8 5½ 39.5 24.5 9.65"
7 8½ 6 40 25 9.84"
7½ 9 6½ 40.5 25.5 10.04"
8 9½ 7 41.5 26 10.24"
8½ 10 7½ 42 26.5 10.43"
9 10½ 8 42.5 27 10.63"
9½ 11 8½ 43 27.5 10.83"
10 11½ 9 44 28 11.02"
10½ 12 9½ 44.5 28.5 11.22"
11 12½ 10 45 29 11.42"
11½ 13 10½ 45.5 29.5 11.61"
12 13½ 11 46.5 30 11.81"
12½ 14 11½ 47 30.5 12.01"
13 15 12 47.5 31 12.20"
14 — 13 49 32 12.60"
15 — 14 50 33 12.99"
16 — 15 51 34 13.39"

Kizik women’s sizes are 1½ larger than men’s for the same foot. Women’s 5 isn’t on Kizik’s chart — call us and we’ll help.

Toddler (3C–10C)

US UK EU Foot length (cm) Foot length (in)
3C 2 18.5 11 4.35"
4C 3 19.5 12 4.67"
5C 4 21 12.5 5"
6C 5 22 13 5 1/8"
7C 6 23.5 14 5 1/2"
8C 7 25 14.5 5 3/4"
9C 8 26 15.5 6 1/8"
10C 9 27 16.5 6 9/16"

Little Kids (11C–3Y)

US UK EU Foot length (cm) Foot length (in)
11C 10 28 17.5 6 15/16"
11½C 10.5 29 18 7 1/8"
12C 11 30 18.5 7 1/4"
12½C 11.5 30.5 18.75 7 3/8"
13C 12 31 19 7 9/16"
13½C 12.5 31.5 19.5 7 3/4"
1Y 13 32 20 7 15/16"
1½Y 13.5 32.5 20.5 8 1/8"
2Y 1 33 21 8 1/4"
2½Y 1.5 33.5 21.75 8 3/8"
3Y 2 34 22 8 9/16"

Big Kids (3½Y–7Y)

US UK EU Foot length (cm) Foot length (in)
3½Y 2.5 35 22 8 3/4"
4Y 3 36 22.5 8 13/16"
4½Y 3.5 36.5 22.9 8 15/16"
5Y 4 37 23.2 9 1/8"
5½Y 4.5 38 23.5 9 1/4"
6Y 5 38.5 24 9 3/8"
6½Y 5.5 39 24.5 9 9/16"
7Y 6 40 25 9 11/16"

C = child sizes; Y = youth sizes, which start over at 1 after 13½. Size 10½C isn’t on Kizik’s chart — use your child’s foot length, or call us.

Growing room (kids)

How much room? About a thumb’s width at the toe — roughly ½ inch (1 to 1.5 cm) between the longest toe and the end of the shoe.

Thumb test: with your child standing, press the tip of your thumb down at the front of the shoe. You should be able to press down without hitting a toe.

Time for a bigger size if toes are pressed against the front, the shoe leaves deep marks or blisters, or your child says their feet hurt. Too big if their heel lifts out when walking, or they trip or drag their feet.

How to measure

  1. Stand on a sheet of paper, with your weight on that foot.
  2. Mark the back of your heel and the tip of your longest toe.
  3. Measure between the marks in inches or centimeters.
  4. Measure both feet and use the longer one.
  5. Measure later in the day, when feet are at their largest, wearing the socks you’ll wear with the shoes.

Need help? We measure every customer with a Brannock device at our Kettering store. Stop in for a fitting, or call us at 937.298.1801 and we’ll help you choose. Ready to shop? Shop all Kizik →

Source: Kizik size and fitting charts (kizik.com) · Last checked October 2026