Verified brand-to-brand conversionNike vs Brooks shoe sizing
A Nike US 10 is about a Brooks US 9 (EU 42.5) in men's sizes. Brooks fits about a full size bigger at the same printed size, so expect to take about a full size down in Brooks, 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 Brooks
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Nike to Brooks 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) | Brooks US | Brooks EU |
|---|---|---|---|
| 7.5 | 25.0 | 7 | 40 |
| 8 | 25.4 | 7.5 | 40.5 |
| 8.5 | 25.8 | 8 | 41 |
| 9 | 26.2 | 8 | 41 |
| 9.5 | 26.7 | 8.5 | 42 |
| 10 | 27.1 | 9 | 42.5 |
| 10.5 | 27.5 | 9.5 | 43 |
| 11 | 27.9 | 10 | 44 |
| 11.5 | 28.3 | 10.5 | 44.5 |
| 12 | 28.8 | 11 | 45 |
| 12.5 | 29.2 | 11 | 45 |
| 13 | 29.6 | 11.5 | 46 |
| 13.5 | 30.0 | 12 | 47 |
| 14 | 30.5 | 12.5 | 47.5 |
| 14.5 | 30.9 | 13 | 48 |
| 15 | 31.3 | 14 | 49 |
Women's
| Nike US | Foot (cm) | Brooks US | Brooks EU |
|---|---|---|---|
| 5 | 22.1 | 5 | 35.5 |
| 5.5 | 22.4 | 5.5 | 36 |
| 6 | 22.9 | 6 | 36.5 |
| 6.5 | 23.3 | 6.5 | 37.5 |
| 7 | 23.7 | 6.5 | 37.5 |
| 7.5 | 24.1 | 7 | 38 |
| 8 | 24.6 | 7.5 | 38.5 |
| 8.5 | 24.9 | 8 | 39 |
| 9 | 25.4 | 8.5 | 40 |
| 9.5 | 25.9 | 9 | 40.5 |
| 10 | 26.2 | 9 | 40.5 |
| 10.5 | 26.7 | 9.5 | 41 |
| 11 | 27.1 | 10 | 42 |
| 11.5 | 27.5 | 10.5 | 42.5 |
| 12 | 27.9 | 10.5 | 42.5 |
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 Brooks: common questions
Does Brooks run bigger or smaller than Nike?
Brooks runs about a full size bigger than Nike: the same foot takes a lower number in Brooks, consistently across the size range. For example, a Nike US 10 maps to a Brooks US 9.
Can I buy Brooks in my Nike size?
No. The number on the box means a different foot length in each brand, which is why a straight size-for-size swap misfits. Use the table above or the converter to translate properly.
How do I convert my Nike size to Brooks?
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
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