Shoe Size Converter
Convert shoe sizes between US, EU, UK, JP (cm), KR (mm), CN (mm), AU, and BR sizing systems for men and women. Enter your size in any system to see all equivalents.
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What This Shoe Size Converter Does
This converter translates shoe sizes between eight major systems — US, EU, UK, JP, KR, CN, AU, and BR — for both men's and women's footwear. It also shows the underlying foot length in cm and inches, which is the most reliable basis for finding the right fit.
How Shoe Size Systems Work
All systems ultimately encode foot length, but using different scales and offsets:
- JP (cm): foot length in centimeters directly. The most transparent system.
- KR (mm): foot length in millimeters. KR 280 = 28 cm foot. Used in South Korea.
- CN (mm): identical numbering to KR; based on GB/T 3293 standard. Used in mainland China.
- EU: approximately (foot length cm + 1.5) ÷ 0.667, rounding down to the nearest whole size.
- US men's: foot length cm − 18.
- US women's: foot length cm − 16.5 (women's sizes run 1.5 larger than men's for the same foot).
- UK: foot length cm − 18.5 (gender-neutral).
- AU men's: same as UK men's (foot length cm − 18.5).
- AU women's: foot length cm − 17.5 (AU women's run 1 size smaller than men's for the same foot).
- BR: approximately (foot length cm + 0.5) ÷ 0.667, using a smaller allowance than EU. BR ≈ EU − 2 for most sizes.
Quick Reference Table — Men's
| US Men | EU | UK | JP (cm) | KR (mm) | CN (mm) | AU Men | BR | Foot (cm) |
|---|---|---|---|---|---|---|---|---|
| 6 | 39 | 5.5 | 24 | 240 | 240 | 5.5 | 36 | 24.0 |
| 7 | 40 | 6.5 | 25 | 250 | 250 | 6.5 | 38 | 25.0 |
| 8 | 41 | 7.5 | 26 | 260 | 260 | 7.5 | 39 | 26.0 |
| 9 | 42 | 8.5 | 27 | 270 | 270 | 8.5 | 41 | 27.0 |
| 10 | 44 | 9.5 | 28 | 280 | 280 | 9.5 | 42 | 28.0 |
| 11 | 45 | 10.5 | 29 | 290 | 290 | 10.5 | 44 | 29.0 |
| 12 | 46 | 11.5 | 30 | 300 | 300 | 11.5 | 45 | 30.0 |
Quick Reference Table — Women's
| US Women | EU | UK | JP (cm) | KR (mm) | CN (mm) | AU Women | BR | Foot (cm) |
|---|---|---|---|---|---|---|---|---|
| 5 | 35 | 3 | 22 | 220 | 220 | 3.5 | 33 | 22.0 |
| 6 | 36 | 4 | 23 | 230 | 230 | 4.5 | 34 | 23.0 |
| 7 | 37 | 5 | 23.5 | 235 | 235 | 5.0 | 35 | 23.5 |
| 8 | 38 | 6 | 24.5 | 245 | 245 | 7.0 | 36 | 24.5 |
| 9 | 40 | 7 | 25.5 | 255 | 255 | 8.0 | 38 | 25.5 |
| 10 | 41 | 8 | 26.5 | 265 | 265 | 9.0 | 39 | 26.5 |
How to Measure Your Foot
Stand on a piece of paper and trace the outline of your foot. Measure the longest distance from heel to toe in centimeters — this is your foot length and directly equals your JP size. Add 1–1.5 cm for comfort allowance when selecting shoes. Measure both feet and use the larger measurement, as feet are commonly slightly different in size. Measure in the evening when feet are at their largest.
Korean and Chinese Sizes (KR / CN)
Both KR and CN use foot length in millimeters as the shoe size number — KR 280 means a 280 mm (28 cm) foot. Since both systems count millimeters from the same starting point, KR and CN sizes are numerically identical for the same foot. To convert to JP (cm), divide by 10; to convert to EU, use the standard EU formula.
Australian Sizes (AU)
Australian men's sizes are numerically the same as UK men's sizes — AU 9.5 and UK 9.5 fit the same foot. Australian women's sizes run 1 smaller than men's for the same foot length (AU W7 fits the same foot as AU M6.5). When buying Australian footwear abroad, check whether the listing uses the men's or women's AU scale.
Brazilian Sizes (BR)
Brazil uses the Paris Point system (like EU) but with a smaller internal allowance (0.5 cm vs EU's 1.5 cm), so BR sizes run about 2 numbers lower than EU for the same foot. A foot that fits EU 44 typically wears BR 42. Brazilian sizing is gender-neutral — the same BR number applies to men's and women's shoes for a given foot length.
Tips for Buying Shoes Across Borders
- Half sizes exist in US and UK but not in EU or BR. If you fall between EU or BR sizes, size up.
- KR and CN sizes use the same mm-based system — a KR/CN 280 is a 28 cm foot.
- Width fittings (D, EE, 2E etc.) are not covered by size number conversions — check width separately.
- Sports shoes, especially running shoes, often have brand-specific sizing that can run a half size smaller than dress shoes.
Frequently Asked Questions (FAQ)
How do I convert US shoe size to EU?
For men's shoes, a US size 10 is approximately EU 44. The general rule is EU ≈ US + 33 for men and EU ≈ US + 30–31 for women. For example, a women's US 8 is typically EU 38–39. These are standard sizing estimates — actual fit can vary by brand, so try shoes on whenever possible, especially when shopping online.
What is a Japanese shoe size in US sizes?
Japanese shoe sizes measure foot length directly in centimeters. A JP 28 cm (men's) equals approximately US 10, and a JP 24 cm (women's) equals approximately US 8. To convert: men's US ≈ JP cm − 18; women's US ≈ JP cm − 16.5. For example, JP 26.5 cm men's ≈ US 8.5.
How do men's and women's shoe sizes differ?
In the US, women's sizes run about 1.5 sizes larger than the equivalent men's size for the same foot length. A women's US 8 corresponds to a men's US 6.5 — both fit a foot approximately 24.5 cm long. When converting to EU or UK, use the same foot length regardless of gender, since EU and UK sizes are based on foot length rather than gender-specific scales.
How do I measure my foot to find the right shoe size?
Stand on a piece of paper and trace the outline of your foot. Measure the longest distance from heel to toe in centimeters — this is your foot length. For shoes, add about 1–1.5 cm to account for comfort and movement. That total is your JP size (cm) and the basis for all other size conversions. Measure both feet and use the larger measurement; feet are often slightly different in size.