Shoe size is determined by measuring the length of the foot from the heel to the longest toe, and then using that measurement to determine the appropriate size according to the relevant sizing standard. The width of the foot is also taken into account in some sizing systems, particularly for specialised footwear such as athletic or safety shoes.
It's important to note that shoe sizes can vary between brands and countries, so it's always best to consult the specific size chart or conversion guide provided by the manufacturer when purchasing footwear. Additionally, it's recommended to try on shoes whenever possible to ensure the best fit and comfort.
Here are some common shoe size conversion charts for reference:
Men's US/UK/EU/JP Shoe Size Conversion Chart:
| US Size | UK Size | EU Size | JP Size |
|----------|----------|---------|--------|
| 6 | 5 | 39 | 25 |
| 7 | 6 | 40 | 26 |
| 8 | 7 | 41 | 27 |
| 9 | 8 | 42 | 28 |
| 10 | 9 | 43 | 29 |
| 11 | 10 | 44 | 30 |
| 12 | 11 | 45 | 31 |
| 13 | 12 | 46 | 32 |
| 14 | 13 | 47 | 33 |
| 15 | 14 | 48 | 34 |
Women's US/UK/EU/JP Shoe Size Conversion Chart:
| US Size | UK Size | EU Size | JP Size |
|----------|----------|---------|--------|
| 5 | 3 | 36 | 22.5 |
| 6 | 4 | 37 | 23.5 |
| 7 | 5 | 38 | 24.5 |
| 8 | 6 | 39 | 25.5 |
| 9 | 7 | 40 | 26.5 |
| 10 | 8 | 41 | 27.5 |
| 11 | 9 | 42 | 28.5 |
| 12 | 10 | 43 | 29.5 |
| 13 | 11 | 44 | 30.5 |
| 14 | 12 | 45 | 31.5 |