The Ultimate Guide to Shoe Size Conversion
Buying shoes online can be frustrating when sizes vary across countries and brands. A "Size 10" in the US is very different from a "Size 10" in the UK. Our International Shoe Size Converter helps you find the perfect fit, whether you're shopping for Nike sneakers, timberland boots, or formal dress shoes.
How Shoe Sizing Works Globally
There are four main shoe sizing systems used around the world. Understanding the difference is key to avoiding returns.
- US & Canada: Based on the length of the last (the foot mold) in inches. Men's and Women's scales are different (usually by 1.5 sizes).
- UK (United Kingdom): Similar to the US system but numbering starts lower. A UK size is typically 1 size smaller than the US equivalent for men.
- EU (Europe): Based on the "Paris Point" system (2/3 of a centimeter). It is a unisex system used in France, Germany, Italy, and Spain.
- CM / JP (Japan): The most logical system. It simply indicates the length of the foot in centimeters.
Brand Size Variations (Nike vs. Adidas)
Even with standard charts, brands often run "true to size," "small," or "large." Here is a general comparison for popular sneaker brands:
| Brand | Fit Tendency | Advice |
|---|---|---|
| Nike | True to Size | Stick to your normal size. |
| Adidas | Slightly Large | Go 0.5 size down for models like Stan Smith. |
| Converse | Large | Go 0.5 to 1 full size down. |
| New Balance | True to Size / Wide | Great for wide feet. |
Frequently Asked Questions (FAQ)
Is US Men's size the same as US Women's?
No. In the US system, there is usually a 1.5 size difference. For example, a US Men's 8 is roughly equivalent to a US Women's 9.5. Always check the gender setting on the calculator.
How to measure foot length accurately?
The best time to measure your feet is in the afternoon or evening, as feet tend to swell slightly during the day. Place your heel against a wall, mark the tip of your longest toe on a piece of paper, and measure the distance.
What is size 42 in US?
A European size 42 generally corresponds to a US Men's 9 or US Women's 10.5. However, this can vary slightly by brand.
Disclaimer: This converter provides general guidelines based on ISO standards. Always refer to specific brand size charts for the most accurate fit.