Nike Size Chart Guide: Shoes, US, UK, EU, CM & Fit Notes
Independent Nike size chart guide with shoe conversion notes for US, UK, EU, CM, men, women and kids.
Adult shoe size conversion chart
Use foot length first, then compare US men, US women, UK, EU, and JP/Mondopoint labels.
| Foot length | EU | UK | US women | US men | JP / Mondopoint | Fit note |
|---|---|---|---|---|---|---|
| 22.0 cm / 8.66 in | 35-36 | 3 | 5 | 4-4.5 | 220 | Usually women's XS / youth crossover |
| 23.0 cm / 9.06 in | 36-37 | 4 | 6 | 5-5.5 | 230 | Common women's small size |
| 24.0 cm / 9.45 in | 38 | 5-5.5 | 7-7.5 | 6-6.5 | 240 | Common women's medium size |
| 25.0 cm / 9.84 in | 39-40 | 6-6.5 | 8-8.5 | 7-7.5 | 250 | Women's large / men's small crossover |
| 26.0 cm / 10.24 in | 41 | 7-7.5 | 9-9.5 | 8-8.5 | 260 | Common men's medium entry |
| 27.0 cm / 10.63 in | 42-43 | 8-8.5 | 10-10.5 | 9-9.5 | 270 | Common men's medium |
| 28.0 cm / 11.02 in | 44 | 9-9.5 | 11-11.5 | 10-10.5 | 280 | Common men's large |
| 29.0 cm / 11.42 in | 45-46 | 10.5-11 | 12.5-13 | 11.5-12 | 290 | Men's XL range |
| 30.0 cm / 11.81 in | 47 | 12 | 14 | 13 | 300 | Men's extended range |
| 31.0 cm / 12.20 in | 48-49 | 13-14 | 15-16 | 14-15 | 310 | Men's extended range |
Shoe conversions are approximate. Brand, model, width, last shape, and sock thickness can change the best size.
Kids shoe size chart by foot length
Age is only a rough guide. Foot length is the better starting point for infants, toddlers, little kids, and youth sizes.
| Foot length | US kids | UK kids | EU | Approx age | Stage |
|---|---|---|---|---|---|
| 9.5 cm / 3.74 in | US 1C | UK 0.5 | EU 16 | 0-3 months | Infant |
| 10.5 cm / 4.13 in | US 3C | UK 2 | EU 18 | 3-9 months | Infant |
| 11.5 cm / 4.53 in | US 4C | UK 3 | EU 19 | 9-12 months | Infant / first walker |
| 12.5 cm / 4.92 in | US 5C | UK 4 | EU 20-21 | 12-18 months | Toddler |
| 13.5 cm / 5.31 in | US 6C | UK 5 | EU 22 | 18-24 months | Toddler |
| 14.5 cm / 5.71 in | US 8C | UK 7 | EU 24-25 | 2-3 years | Toddler |
| 15.5 cm / 6.10 in | US 9C | UK 8 | EU 26 | 3-4 years | Little kid |
| 16.5 cm / 6.50 in | US 10C | UK 9 | EU 27 | 4 years | Little kid |
| 17.5 cm / 6.89 in | US 11C | UK 10 | EU 28-29 | 5 years | Little kid |
| 18.5 cm / 7.28 in | US 12C | UK 11 | EU 30 | 5-6 years | Little kid |
| 19.5 cm / 7.68 in | US 13C | UK 12 | EU 31 | 6-7 years | Little kid |
| 20.5 cm / 8.07 in | US 1Y | UK 13 | EU 32 | 7-8 years | Youth |
| 21.5 cm / 8.46 in | US 2Y | UK 1 | EU 33-34 | 8-9 years | Youth |
| 22.5 cm / 8.86 in | US 4Y | UK 3 | EU 35-36 | 9-11 years | Youth / adult crossover |
| 23.5 cm / 9.25 in | US 5Y | UK 4 | EU 37 | 10-12 years | Youth / adult crossover |
| 24.5 cm / 9.65 in | US 6Y | UK 5 | EU 38 | 11-13 years | Youth / adult crossover |
| 25.0 cm / 9.84 in | US 7Y | UK 6 | EU 39-40 | 12+ years | Youth / adult crossover |
Kids shoe sizes repeat numbers across infant, child, and youth ranges. Keep C/Y labels visible to avoid choosing the wrong range.
Brand fit comparison notes
Use these notes as shopping guidance, not as official brand sizing. Always compare the product page chart before ordering.
| Brand | Common fit pattern | Best conversion check | Caution |
|---|---|---|---|
| Nike | Often athletic and performance-fit | Start from CM/JP foot length, then check model reviews | Running and lifestyle models can fit differently |
| Adidas | Often true-to-size to slightly roomy by model | Compare UK/EU label and CM when available | Unisex models may use men's US as the primary label |
| New Balance | Strong width options on many models | Choose length first, then width | Width can solve fit better than going up a half size |
| Crocs | Roomy clog fit in many classic styles | Expect more toe-box space than sneakers | Check whether the style is roomy, relaxed, or standard fit |
Brand pages should avoid implying official affiliation. Treat these as independent size-chart references and link users back to generic conversion tools.
How to measure before choosing a size
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FAQ
Is this an official Nike size chart?
No. This is an independent size-chart guide. Always check the product page chart before buying.
Do Nike shoes run small?
Fit varies by model. Some performance shoes feel snug, while lifestyle models may feel more standard.
Should I use Nike CM sizing?
Yes. CM/JP length is often the best cross-check when US, UK, and EU conversions disagree.