Men's Sneaker Size Converter
Select your size system, pick your size, and every equivalent appears instantly.
I know my size in
Select your size
US—
UK—
EU—
CM—
Korean—
Enter your foot length above for a size recommendation.
⚠ Sizing varies between brands and styles. These conversions are a guide — always check the brand's own size chart before buying.
Women's Sneaker Size Converter
Select your size system, pick your size, and every equivalent appears instantly.
I know my size in
Select your size
US—
UK—
EU—
CM—
Korean—
Enter your foot length above for a size recommendation.
⚠ Sizing varies between brands and styles. These conversions are a guide — always check the brand's own size chart before buying.
Kids' Shoe Size Converter
Choose an age category, then select your size system for instant conversions across US, UK and EU.
Age category
I know my size in
Select your size
US—
UK—
EU—
CM—
Enter your child's foot length above for a size recommendation.
⚠ Kids' feet grow fast — measure regularly and always allow a little extra room. Check the brand's own chart before buying.
Sneaker Brand Size Guide
Not all sneakers fit the same. Here's how the major brands run relative to your true size — so you know before you buy. We've noted which specific models are affected and how much to adjust.
| Brand | Fit | Adjustment | Notes |
|---|---|---|---|
| Nike | True to Size | None needed | Generally TTS across most styles. Air Force 1 fits slightly roomy. React and Pegasus running shoes can run narrow — wide-footer types should consider half a size up. |
| Adidas | Runs Small | Go ½ size up | Ultraboost and NMD run about half a size small. Stan Smith and Gazelle are TTS but fit narrow — if you have wider feet, go half a size up. Yeezy sizing varies by model. |
| New Balance | True to Size | None needed | TTS with excellent width options (B through 4E). Known for a comfortable, slightly roomier toe box than Nike. 990, 574 and 550 are all reliably TTS. |
| Jordan | True to Size | None needed | Most Jordan models are TTS. Air Jordan 1 fits wide and roomy — narrow-foot types can size down half. Jordan 11 runs a touch large; some people prefer half a size down. |
| Vans | Runs Large | Go ½ size down | Old Skool and Sk8-Hi run slightly long — go half a size down if between sizes. Canvas styles stretch a little with wear. Slip-ons tend to feel roomy, so size down more confidently. |
| Converse | Runs Very Large | Go 1–1.5 sizes down | Chuck Taylors are famous for running big. Men should go 1 to 1.5 sizes down. Women should go down 2 full sizes (they use unisex sizing). The roomy toe box gets roomier as the canvas breaks in. |
| Puma | True to Size | None needed | Suede Classic and RS models are reliably TTS. Puma fits slightly narrow across most styles — wider feet may prefer to go half a size up for comfort on longer wear days. |
| Reebok | True to Size | None needed | Classic Leather and Club C are TTS. Reebok generally fits well across widths. Instapump Fury runs slightly narrow. Classics tend to have a slightly roomier toe box than running styles. |
Fit notes reflect general fit across popular models and community feedback. Individual styles may vary. Always check the specific product page for fit recommendations before purchasing.
Sneaker Sizing — Frequently Asked Questions
How do I convert US shoe sizes to EU?
To convert US men's sizes to EU, add roughly 33 to your US size — so a US 10 is approximately EU 44. For women, add about 31 to your US size, so a US 8 is around EU 38.5. The easiest approach is to use the converter above, which gives you the exact EU equivalent for your size instantly.
What is my shoe size in CM?
Your shoe size in CM refers to the length of your foot in centimetres. You can measure it by standing on a piece of paper, tracing around your foot and measuring from heel to the tip of your longest toe. A US men's 10 is approximately 28cm, and a US women's 8 is approximately 25cm. Use the foot length helper in the converter above for an instant size recommendation.
Do Nike shoes run true to size?
Nike shoes generally run true to size, but fit can vary by model. Running shoes like the Pegasus and React Infinity tend to be accurate to your normal size, while lifestyle styles like the Air Force 1 can feel slightly roomy. If you're between sizes in Nike, most people are comfortable going half a size down.
What is the difference between men's and women's shoe sizing?
Men's and women's shoe sizes use different numbering systems even though they can refer to the same foot lengths. A women's US 8 is roughly equivalent to a men's US 6.5 — women's sizes run about 1.5 sizes larger than men's for the same foot. Women's shoes are also typically made on a narrower last, which matters when buying unisex or crossover styles.
How do I convert kids' shoe sizes to adult sizes?
Big kids' sizes (Y) run up to a US 7Y, which is close to a US 7 in women's or a US 5.5 in men's. Kids' sizes and adult women's sizes overlap closely — a kids' 5Y is roughly a women's US 6.5. If you have wide feet, adult sizing is usually a better option since it comes in more width choices than kids' shoes.
What shoe size is EU 42 in US?
EU 42 is a US men's 8.5 or a US women's 11, depending on the gender sizing chart you're using. EU sizes use the same number across men's and women's but the equivalent US size differs between the two. Use the converter above to check both conversions instantly.
Do Converse run big or small?
Converse sneakers are well known for running big — most people go 1 to 1.5 sizes down from their usual size. The classic Chuck Taylor has a roomy toe box and uses unisex sizing, so women typically need to go down 2 full sizes compared to their normal women's size. If you're a US men's 10 in most brands, start with a Converse 9.