Enter your foot length in centimetres to instantly find your men's shoe size in EU, UK and US standards. Type as you measure — the result updates live. Full size chart included for reference.
| Foot (cm) | EU | UK | US | JP (cm) |
|---|---|---|---|---|
| 24.5 | 38 | 5 | 6 | 24.5 |
| 25.0 | 38.5 | 5.5 | 6.5 | 25.0 |
| 25.5 | 39 | 6 | 7 | 25.5 |
| 26.0 | 40 | 6.5 | 7.5 | 26.0 |
| 26.5 | 40.5 | 7 | 8 | 26.5 |
| 27.0 | 41 | 7.5 | 8.5 | 27.0 |
| 27.5 | 42 | 8 | 9 | 27.5 |
| 28.0 | 42.5 | 8.5 | 9.5 | 28.0 |
| 28.5 | 43 | 9 | 10 | 28.5 |
| 29.0 | 44 | 9.5 | 10.5 | 29.0 |
| 29.5 | 44.5 | 10 | 11 | 29.5 |
| 30.0 | 45 | 10.5 | 11.5 | 30.0 |
| 30.5 | 46 | 11 | 12 | 30.5 |
| 31.0 | 47 | 11.5 | 12.5 | 31.0 |
For the most accurate result, measure in the afternoon or evening — feet naturally expand slightly throughout the day. If you are between sizes in the chart, always choose the larger size.
There are four main shoe sizing systems used globally. EU (European) sizes, also called Paris Point, are based on the inner length of the shoe in units of ⅔ cm. They are used across Continental Europe and are the most widely referenced international standard. UK sizes use a different scale — they are approximately 1 size smaller than US sizes and use barleycorns (⅓ inch) as the unit. US sizes are 1 size larger than UK sizes. Japanese (JP) sizes simply use the foot length in centimetres, making them the most intuitive system.
When buying shoes from a different country, always convert from your foot length rather than translating between size numbers directly. A US 10 is not the same as a UK 10 — the UK equivalent is 9.5.
Results from this calculator are estimates based on official US, UK, EU and Asian footwear sizing charts and are provided for general informational purposes. Rounding, regional standards and manufacturer variations can cause small differences from official or brand-specific figures.
For decisions where precision is critical — engineering, construction or legal contexts — verify results with a qualified professional or an official reference source.
This calculator uses official US, UK, EU and Asian footwear sizing charts. The underlying logic was built and manually cross-checked against independent reference calculators and textbook worked examples across dozens of test cases before publication.
Every formula on elCalculador is reviewed by our editorial team for mathematical accuracy, and pages are re-audited whenever a calculator's logic or inputs are updated.