ASICS Shoe Size Chart
What's my ASICS size?
ASICS Men's Size Chart
| US | EU | UK | JP / CM |
|---|---|---|---|
| 4 | 36 | 3 | 22.5 |
| 4.5 | 37 | 3.5 | 23 |
| 5 | 37.5 | 4 | 23.5 |
| 5.5 | 38 | 4.5 | 24 |
| 6 | 39 | 5 | 24.5 |
| 6.5 | 39.5 | 5.5 | 25 |
| 7 | 40 | 6 | 25.25 |
| 7.5 | 40.5 | 6.5 | 25.5 |
| 8 | 41.5 | 7 | 26 |
| 8.5 | 42 | 7.5 | 26.5 |
| 9 | 42.5 | 8 | 27 |
| 9.5 | 43.5 | 8.5 | 27.5 |
| 10 | 44 | 9 | 28 |
| 10.5 | 44.5 | 9.5 | 28.25 |
| 11 | 45 | 10 | 28.5 |
| 11.5 | 46 | 10.5 | 29 |
| 12 | 46.5 | 11 | 29.5 |
| 12.5 | 47 | 11.5 | 30 |
| 13 | 48 | 12 | 30.5 |
| 13.5 | 48.5 | 12.5 | 30.75 |
| 14 | 49 | 13 | 31 |
| 14.5 | 49.5 | 13.5 | 31.5 |
| 15 | 50.5 | 14 | 32 |
ASICS Women's Size Chart
| US | EU | UK | JP / CM |
|---|---|---|---|
| 4 | 34.5 | 2 | 21.5 |
| 4.5 | 35 | 2.5 | 22 |
| 5 | 35.5 | 3 | 22.5 |
| 5.5 | 36 | 3.5 | 22.75 |
| 6 | 37 | 4 | 23 |
| 6.5 | 37.5 | 4.5 | 23.5 |
| 7 | 38 | 5 | 24 |
| 7.5 | 39 | 5.5 | 24.5 |
| 8 | 39.5 | 6 | 25 |
| 8.5 | 40 | 6.5 | 25.5 |
| 9 | 40.5 | 7 | 25.75 |
| 9.5 | 41.5 | 7.5 | 26 |
| 10 | 42 | 8 | 26.5 |
| 10.5 | 42.5 | 8.5 | 27 |
| 11 | 43.5 | 9 | 27.5 |
| 11.5 | 44 | 9.5 | 28 |
| 12 | 44.5 | 10 | 28.5 |
| 12.5 | 45 | 10.5 | 28.75 |
| 13 | 46 | 11 | 29 |
Data verified Aug 2026 · Official size guide · See an error? Report it
ASICS Sizing & Fit Guide
ASICS shoes run true to size. The Gel-Kayano and Nimbus offer a standard-to-roomy fit. Some models like the Gel-Resolution may fit slightly narrow for tennis. Wide options available. Men's and women's ASICS sizes sit on genuinely different EU/UK scales — a 25 cm foot is a men's EU 40 but a women's EU 39.5, so check your own gender's row rather than assuming a shared conversion.
Frequently Asked Questions
ASICS shoes run true to size. The Gel-Kayano and Nimbus offer a standard-to-roomy fit. Some models like the Gel-Resolution may fit slightly narrow for tennis. Wide options available. Men's and women's ASICS sizes sit on genuinely different EU/UK scales — a 25 cm foot is a men's EU 40 but a women's EU 39.5, so check your own gender's row rather than assuming a shared conversion.
Enter your foot length in the finder at the top of this page — or, if you don't have a ruler, pick a brand you already know and your size in it — and we'll instantly highlight your equivalent ASICS size in the men's and women's charts below. To compare your size across many brands at once, use our shoe size converter.
ASICS EU 42 is approximately a US men's 8.5-9. However, exact conversions vary slightly. Use our size chart table above for the precise conversion, or try our interactive converter for personalized results.