Nike converts US to UK with a full-size offset (a US 10 is a UK 9, not a UK 9.5), which is the detail that trips up most first-time buyers coming from Adidas or New Balance. Use the tables below to convert between US, UK, EU and CM (foot length) sizing before you order. If you’re between two sizes, or want the full fit breakdown by model, see our Nike sizing guide.
Men’s Nike Size Chart
Foot length (CM) is the most reliable column if you’re converting from a brand outside the US/UK/EU system.
| US | UK | EU | CM |
|---|---|---|---|
| 4 | 3.5 | 36 | 22 |
| 4.5 | 4 | 36.5 | 22.4 |
| 5 | 4.5 | 37.5 | 22.9 |
| 5.5 | 5 | 38 | 23.3 |
| 6 | 5.5 | 38.5 | 23.7 |
| 6.5 | 6 | 39 | 24.1 |
| 7 | 6 | 40 | 24.5 |
| 7.5 | 6.5 | 40.5 | 25 |
| 8 | 7 | 41 | 25.4 |
| 8.5 | 7.5 | 42 | 25.8 |
| 9 | 8 | 42.5 | 26.2 |
| 9.5 | 8.5 | 43 | 26.7 |
| 10 | 9 | 44 | 27.1 |
| 10.5 | 9.5 | 44.5 | 27.5 |
| 11 | 10 | 45 | 27.9 |
| 11.5 | 10.5 | 45.5 | 28.3 |
| 12 | 11 | 46 | 28.8 |
| 12.5 | 11.5 | 47 | 29.2 |
| 13 | 12 | 47.5 | 29.6 |
Women’s Nike Size Chart
Nike women’s sizes run on a separate last from men’s, roughly 1.5 US sizes larger at the same physical length — always convert using the women’s table below rather than adjusting the men’s chart.
| US | UK | EU | CM |
|---|---|---|---|
| 5 | 2.5 | 35.5 | 22 |
| 5.5 | 3 | 36 | 22.4 |
| 6 | 3.5 | 36.5 | 22.9 |
| 6.5 | 4 | 37.5 | 23.3 |
| 7 | 4.5 | 38 | 23.7 |
| 7.5 | 5 | 38.5 | 24.1 |
| 8 | 5.5 | 39 | 24.5 |
| 8.5 | 6 | 40 | 25 |
| 9 | 6.5 | 40.5 | 25.4 |
| 9.5 | 7 | 41 | 25.8 |
| 10 | 7.5 | 42 | 26.2 |
| 10.5 | 8 | 42.5 | 26.7 |
| 11 | 8.5 | 43 | 27.1 |
| 11.5 | 9 | 44 | 27.5 |
| 12 | 9.5 | 44.5 | 27.9 |
How to Use This Chart
Measure your foot length in centimeters from heel to the tip of your longest toe, in the afternoon when feet are slightly swollen, and match it to the CM column — this is more accurate than converting from a size you wear in another brand. Remember Nike’s US-to-UK offset is a full size (US 10 = UK 9), unlike Adidas and New Balance’s half-size offset, so double-check the UK column when switching brands. Nike runs true to size on most lifestyle models like the Air Force 1, though some running silhouettes fit slightly snug through the toe box.
Frequently Asked Questions
Does Nike run true to size?
Most Nike lifestyle sneakers, including the Air Force 1 and Dunk, run true to size. Some performance running models fit slightly narrow or short, so checking the CM column is worthwhile if you’re between sizes.
Is Nike sizing the same for men and women?
No. Nike women’s shoes are built on a dedicated women’s last and run about 1.5 US sizes larger than the men’s equivalent for the same foot length. Use the women’s table above rather than converting from the men’s chart.
What EU size is a US men’s 10 in Nike?
A US men’s 10 converts to EU 44, UK 9, and 27.1 cm foot length in Nike sizing.