Size charts / Keen
Keen size chart
Reference conversions for Keen across the systems shown below. They compare size labels and do not assess product fit.
Shop Keen · 435 products
Unisex
Scroll within the table to compare sizes.
This table scrolls within its region. Focus this region and use the arrow keys to compare sizes.
| EU | US | UK |
|---|---|---|
| 35 | 5 | 2.5 |
| 35 1/2 | 5.5 | 3 |
| 36 | 6 | 3.5 |
| 37 | 6.5 | 4 |
| 37 1/2 | 7 | 4.5 |
| 38 | 7.5 | 5 |
| 38 1/2 | 8 | 5.5 |
| 39 | 8.5 | 6 |
| 39 1/2 | 9 | 6.5 |
| 40 | 9.5 | 7 |
| 40 1/2 | 10 | 7.5 |
| 41 | 10.5 | 8 |
| 42 | 11 | 8.5 |
| 11.5 | ||
| 43 | 12 | 9 |
Grade school (GS)
Scroll within the table to compare sizes.
This table scrolls within its region. Focus this region and use the arrow keys to compare sizes.
| EU | US | UK |
|---|---|---|
| 3.5 | ||
| 4 | ||
| 4.5 | ||
| 5 | ||
| 5.5 | ||
| 6 | ||
| 6.5 | ||
| 39 1/2 | 7 | 6 |
| 40 | 7.5 | 6.5 |
| 40 1/2 | 8 | 7 |
| 41 | 8.5 | 7.5 |
| 42 | 9 | 8 |
| 42 1/2 | 9.5 | 8.5 |
| 43 | 10 | 9 |
| 44 | 10.5 | 9.5 |
| 44 1/2 | 11 | 10 |
| 45 | 11.5 | 10.5 |
| 46 | 12 | 11 |
| 12.5 | ||
| 47 | 13 | 12 |
| 47 1/2 | 14 | 13 |
| 48 | 15 | 14 |
| 48 1/2 | 16 | 15 |
| 49 | 17 | 16 |
Measure foot length
- Tape a sheet of paper to a hard, flat floor. Stand with one foot on it and keep your weight evenly balanced.
- Mark the tip of your big toe and the farthest point of your heel, then measure between the marks with a ruler.
- Repeat for the other foot. Compare the longer measurement with the shoe maker's own foot-length guide.
Measurement steps and the CM distinction are based on Nike's official footwear size guidance.