👟 Shoe Size Converter

Convert shoe sizes for Women, Men, Girls, and Boys across US/Canada, Australian, UK/English, European, and Japan (cm) standards — using official international conversion charts. Select sizes within the same group (e.g., Women's US → Women's EU).

Quick Reference — Shoe Size
From To

Women's Shoe Sizes — International Chart

US Australian UK European Japan (cm)
4.5 3 2 34 21.5
5 3.5 2.5 35 22
5.5 4 3 35.5 22.5
6 4.5 3.5 36 23
6.5 5 4 37 23
7 5.5 4.5 37.5 23.5
7.5 6 5 38 24
8 6.5 5.5 38.5 24
8.5 7 6 39 24.5
9 7.5 6.5 39.5 25
9.5 8 7 40 25.5
10 8.5 7.5 41 26
10.5 9 8 42 26.5
11 9 9 43 28
12 10.5 10 44 29
13 11.5 11 45 30

Men's Shoe Sizes — International Chart

US UK European Japan (cm)
5.5 5 38 23.5
6 5.5 38.7 24
6.5 6 39.3 24.5
7 6.5 40 25
7.5 7 40.5 25.5
8 7.5 41 26
8.5 8 42 26.5
9 8.5 42.5 27
9.5 9 43 27.5
10 9.5 44 28
10.5 10 44.5 28.5
11 10.5 45 29
11.5 11 46 29.5
12 11.5 46.5 30
12.5 12 47 30.5

Girls' Shoe Sizes — International Chart

US UK European Japan (cm)
8.5 8 26 14.5
9 8.5 26.5 15
9.5 9 27 15.5
10 9.5 27.5 16
10.5 10 28 16.5
11 10.5 28.5 17
11.5 11 29 17.5
12 11.5 30 18
13 12 30.5 18.5
13.5 12.5 31 19
1 13 31.5 19.5
1.5 13.5 32.2 20
2 1 33 20.5
2.5 1.5 33.5 21
3 2 34 21.5
3.5 2.5 35 22

Boys' Shoe Sizes — International Chart

US UK European Japan (cm)
11.5 11 29 16.5
12 11.5 29.7 17
12.5 12 30.5 17.5
13 12.5 31 18
13.5 13 31.5 18.5
1 13.5 33 19
1.5 1 33.5 19.5
2 1.5 34 20
2.5 2 34.7 20.5
3 2.5 35 21
3.5 3 35.5 21.5
4 3.5 36 22
4.5 4 37 22.5
5 4.5 37.5 23

Note: Sizes are based on official international conversion charts. Kids' sizes use a separate numbering system that resets at 1 after 13.5. For best fit, also measure foot length in cm.

About the International Shoe Size Converter

This converter uses exact data from official international shoe size charts for four groups: Women's (US, Australian, UK, EU, Japan), Men's (US, UK, EU, Japan), Girls' (US, UK, EU, Japan), and Boys' (US, UK, EU, Japan).

Simply enter a value, select your source and target units within the same group, and get an instant accurate result. Use the swap button to reverse the conversion direction at any time.

How to Use the Shoe Size Converter

1. Enter your shoe size number in the From field.
2. Select the source standard from the left dropdown (e.g., Women's — US/Canada).
3. Select the target standard from the right dropdown (e.g., Women's — European).
4. The converted result appears instantly. Both units must be from the same group.

How to convert using this page

Enter the input value, choose source and target units, and read the converted result shown instantly.

Formula:

Converted Value = Input Value × (From Unit Factor / To Unit Factor). For non-linear domains, category-specific standard formulas are applied.

Example:

If 1 source unit equals 1000 target units, then 2 source units equal 2000 target units. Use the live converter above for exact values.

Frequently Asked Questions

Q: Is this conversion accurate?
A: Yes, it uses fixed reference factors or tested standard formulas.

Q: Can I reverse the conversion?
A: Yes, swap the units or use the reverse conversion direction.