Use these size charts to find the right size for your next pair of Altra shoes. All measurements are in millimeters (mm).
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Altra Size Charts
Find your perfect fit with the official Altra size charts
Not sure how to measure your feet correctly?
Head over to Find Size, or check out our detailed guide on how to measure your feet and compare to the chart below.
Altra - Female
Last updated: 2025-07-17 11:28:48
| Size (EU) | Foot Length (mm) |
|---|---|
| 36 | 220 |
| 37 | 225 |
| 37.5 | 230 |
| 38 | 235 |
| 38.5 | 240 |
| 39 | 245 |
| 40 | 250 |
| 40.5 | 255 |
| 41 | 260 |
| 42 | 265 |
| 42.5 | 270 |
| 43 | 275 |
| 44 | 280 |
| 44.5 | 285 |
Altra - Male
Last updated: 2025-07-17 11:28:48
| Size (EU) | Foot Length (mm) |
|---|---|
| 40 | 250 |
| 40.5 | 255 |
| 41 | 260 |
| 42 | 265 |
| 42.5 | 270 |
| 43 | 275 |
| 44 | 280 |
| 44.5 | 285 |
| 45 | 290 |
| 46 | 295 |
| 46.5 | 300 |
| 47 | 305 |
| 48 | 310 |
| 49 | 320 |
| 50 | 330 |
| 51.5 | 340 |