International Shoe Size Conversion Chart: Men’s & Women’s Sizes
Need help finding the right US size to order? Atoms is committed to helping you find the perfect fit. Our size chart is designed for effortless US shoe size to EU, Chinese, and Japanese size conversions & beyond. Your Atoms size should be the same as your usual US sneaker size.
Still unsure? We’re happy to help—just email us at support@atoms.com.
| US – Mens | US – Womens | UK | EU | Chinese | Japanese | Inches | CM |
|---|---|---|---|---|---|---|---|
| 3.5 | 5 | 3 | 35.5 | 225 | 21.6 | 8.66" | 22 |
| 4 | 5.5 | 3.5 | 36 | 230 | 22 | 8.85" | 22.5 |
| 4.5 | 6 | 4 | 36.5 | 235 | 22.4 | 9.05" | 23 |
| 5 | 6.5 | 4.5 | 37.5 | 235 | 22.9 | 9.25" | 23.5 |
| 5.5 | 7 | 5 | 38 | 240 | 23.3 | 9.44" | 24 |
| 6 | 7.5 | 5.5 | 38.5 | 240 | 23.7 | 9.64" | 24.5 |
| 6.5 | 8 | 6 | 39 | 245 | 24.1 | 9.84" | 25 |
| 7 | 8.5 | 6.5 | 40 | 250 | 24.5 | 10.03" | 25.5 |
| 7.5 | 9 | 7 | 40.5 | 255 | 25 | 10.23" | 26 |
| 8 | 9.5 | 7.5 | 41 | 260 | 25.4 | 10.43" | 26.5 |
| 8.5 | 10 | 8 | 42 | 265 | 25.8 | 10.62" | 27 |
| 9 | 10.5 | 8.5 | 42.5 | 270 | 26.2 | 10.82" | 27.5 |
| 9.5 | 11 | 9 | 43 | 275 | 26.7 | 11.02" | 28 |
| 10 | 11.5 | 9.5 | 44 | 280 | 27.1 | 11.22" | 28.5 |
| 10.5 | 12 | 10 | 44.5 | 285 | 27.5 | 11.41" | 29 |
| 11 | 12.5 | 10.5 | 45 | 290 | 27.9 | 11.61" | 29.5 |
| 11.5 | 13 | 11 | 45.5 | 295 | 28.3 | 11.81" | 30 |
| 12 | 13.5 | 11.5 | 46 | 300 | 28.8 | 12" | 30.5 |
| 12.5 | 14 | 12 | 47 | 305 | 29.2 | 12.2" | 31 |
| 13 | 14.5 | 12.5 | 47.5 | 310 | 29.6 | 12.4" | 31.5 |
| 13.5 | 15 | 13 | 48 | 315 | 30 | 12.59" | 32 |
| 14 | 15.5 | 13.5 | 48.5 | 320 | 30.5 | 12.79" | 32.5 |
| 14.5 | 16 | 14 | 49 | 325 | 30.9 | 12.99" | 33 |
| 15 | 16.5 | 14.5 | 49.5 | 330 | 31.3 | 13.18" | 33.5 |
Finding the Perfect Fit
With so many shoe brands—Nike, Adidas, Birkenstocks, Vans, Uggs, and more—it can be difficult to know the perfect size to buy. Follow these easy steps to ensure the most comfortable fit. (For the best results, measure your feet at the end of the day!)
How to measure
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Stand on a piece of paper with your heel against a wall or another vertical, flat surface.
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Mark the end of your longest toe on the paper and measure from the back edge of the paper.
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Repeat with their other foot, then compare with our chart to get the right size. If you generally wear wide shoes, go up half a size.
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