Verified brand-to-brand conversionNike vs Adidas shoe sizing
A Nike US 10 is usually also an Adidas US 10 (EU 44) in men's sizes. Adidas and Nike size very closely on the same foot, based on both brands' official size charts.
Matched by foot length from both brands' published size charts · Updated July 2026
Convert your Nike size to Adidas
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Nike to Adidas size chart
Each row matches by foot length, the key both brands print their charts in. Sizes outside either brand's published range are not shown.
Men's
| Nike US | Foot (cm) | Adidas US | Adidas EU |
|---|---|---|---|
| 4.5 | 22.4 | 4.5 | 36⅔ |
| 5 | 22.9 | 5 | 37⅓ |
| 5.5 | 23.3 | 5.5 | 38 |
| 6 | 23.7 | 6 | 38⅔ |
| 6.5 | 24.1 | 6.5 | 39⅓ |
| 7 | 24.5 | 7 | 40 |
| 7.5 | 25.0 | 7.5 | 40⅔ |
| 8 | 25.4 | 8 | 41⅓ |
| 8.5 | 25.8 | 8.5 | 42 |
| 9 | 26.2 | 9 | 42⅔ |
| 9.5 | 26.7 | 9.5 | 43⅓ |
| 10 | 27.1 | 10 | 44 |
| 10.5 | 27.5 | 10.5 | 44⅔ |
| 11 | 27.9 | 11 | 45⅓ |
| 11.5 | 28.3 | 11.5 | 46 |
| 12 | 28.8 | 12 | 46⅔ |
| 12.5 | 29.2 | 12.5 | 47⅓ |
| 13 | 29.6 | 13 | 48 |
| 13.5 | 30.0 | 13.5 | 48⅔ |
| 14 | 30.5 | 14 | 49⅓ |
| 14.5 | 30.9 | 14.5 | 50 |
| 15 | 31.3 | 15 | 50⅔ |
| 15.5 | 31.7 | 16 | 51⅓ |
| 16 | 32.2 | 17 | 52⅔ |
| 16.5 | 32.6 | 17 | 52⅔ |
| 17 | 33.0 | 17 | 52⅔ |
| 17.5 | 33.4 | 18 | 53⅓ |
Women's
| Nike US | Foot (cm) | Adidas US | Adidas EU |
|---|---|---|---|
| 5 | 22.1 | 5 | 36 |
| 5.5 | 22.4 | 5.5 | 36⅔ |
| 6 | 22.9 | 6 | 37⅓ |
| 6.5 | 23.3 | 6.5 | 38 |
| 7 | 23.7 | 7 | 38⅔ |
| 7.5 | 24.1 | 7.5 | 39⅓ |
| 8 | 24.6 | 8 | 40 |
| 8.5 | 24.9 | 8.5 | 40⅔ |
| 9 | 25.4 | 9 | 41⅓ |
| 9.5 | 25.9 | 9.5 | 42 |
| 10 | 26.2 | 10 | 42⅔ |
| 10.5 | 26.7 | 10.5 | 43⅓ |
| 11 | 27.1 | 11 | 44 |
| 11.5 | 27.5 | 11.5 | 44⅔ |
| 12 | 27.9 | 12 | 45⅓ |
How Nike and Adidas actually compare
The common belief on the internet suggests opting for half a size larger when switching from Nike to Adidas. However, the size charts provided by these brands do not support this advice. 1 cm. 6 cm.
Confusion often arises with the EU column since Adidas includes unique sizes like EU 44 2/3 that other major brands typically do not use. The style of the shoe, rather than the brand, tends to be more significant. Among the 210 Nike models tracked, 27 run approximately a half size large, meaning a Dunk will have a different fit than a Pegasus. If you often find yourself between sizes, measure your foot length in centimeters and rely on that number rather than the size label.
Fit varies by model
Nike
Of 210 tracked Nike models, 27 run large. The rest fit true to the chart. The table above is the brand's standard chart, so check the model before sizing.
Nike vs Adidas: common questions
Does Adidas run bigger or smaller than Nike?
No meaningful difference: Adidas and Nike size very closely on the same foot across their published ranges. When in doubt, match by foot length in centimeters.
Can I buy Adidas in my Nike size?
Close enough to swap in most cases, but always check the table above: both brands publish their own charts, and half-size boundaries can still fall differently.
How do I convert my Nike size to Adidas?
Find your Nike size in the table above and read across, or use the converter with your exact size. The most reliable method is your measured foot length in centimeters: both brands publish their charts against it, so it translates without guesswork. Half sizes round to the nearest size the brand actually makes.
More brand conversions
Brand size charts: Nike size chart · Adidas size chart
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