Use these size charts to convert keen shoe sizes between EU, US and UK. All measurements are in millimeters (mm).
keen Size Charts & Conversion
Convert keen sizes between EU, US and UK
Frequently Asked Questions About keen Sizing
Do all keen shoes fit the same?
No, keen sizing varies by model. Check our model-specific guides for exact fit information on each style.
How do I convert keen sizes between EU, US and UK?
Use our keen size conversion charts above. keen uses standard European sizing - see the tables for exact EU to US and UK conversions.
Which keen models run small or large?
keen fit varies by model. Some styles run small, others run large. Browse our model-specific sizing guides to see exact fit adjustments for each keen shoe.
Need Help Finding Your Size?
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keen :: Official :: male
Unsure about your size? Find your size or check out our detailed guide on how to measure your feet.
Fit Type: True to size
| Foot Length (mm) | EU |
|---|---|
| 244 | 39.5 |
| 248 | 40 |
| 254 | 40.5 |
| 257 | 41 |
| 260 | 42 |
| 267 | 42.5 |
| 270 | 43 |
| 273 | 44 |
| 279 | 44.5 |
| 283 | 45 |
| 286 | 46 |
| 294 | 47 |
| 302 | 47.5 |
| 310 | 48 |
| 318 | 48.5 |
| 326 | 49 |
Based On: keen :: Official :: male
Last updated: 2025-07-17 11:28:48
keen :: Official :: female
Unsure about your size? Find your size or check out our detailed guide on how to measure your feet.
Fit Type: True to size
| Foot Length (mm) | EU |
|---|---|
| 216 | 35 |
| 222 | 35.5 |
| 225 | 36 |
| 230 | 37 |
| 235 | 37.5 |
| 238 | 38 |
| 241 | 38.5 |
| 246 | 39 |
| 251 | 39.5 |
| 254 | 40 |
| 259 | 40.5 |
| 262 | 41 |
| 267 | 42 |
| 276 | 43 |
Based On: keen :: Official :: female
Last updated: 2025-07-17 11:28:48
Keen - Female
Unsure about your size? Find your size or check out our detailed guide on how to measure your feet.
Fit Type: True to size
| Foot Length (mm) | EU |
|---|---|
| 216 | 35 |
| 222 | 35.5 |
| 225 | 36 |
| 230 | 37 |
| 235 | 37.5 |
| 238 | 38 |
| 241 | 38.5 |
| 246 | 39 |
| 251 | 39.5 |
| 254 | 40 |
| 259 | 40.5 |
| 262 | 41 |
| 267 | 42 |
| 276 | 43 |
Based On: Keen - Female
Last updated: 2025-07-17 11:28:48
Keen - Male
Unsure about your size? Find your size or check out our detailed guide on how to measure your feet.
Fit Type: True to size
| Foot Length (mm) | EU |
|---|---|
| 244 | 39.5 |
| 248 | 40 |
| 254 | 40.5 |
| 257 | 41 |
| 260 | 42 |
| 267 | 42.5 |
| 270 | 43 |
| 273 | 44 |
| 279 | 44.5 |
| 283 | 45 |
| 286 | 46 |
| 294 | 47 |
| 302 | 47.5 |
| 310 | 48 |
| 318 | 48.5 |
| 326 | 49 |
Based On: Keen - Male
Last updated: 2025-07-17 11:28:48