Dr. Martens vs On shoe sizing
Compare Dr. Martens and On shoe sizes in EU, US and UK. Use this chart to see size differences and check whether Dr. Martens or On runs smaller or larger.
| Dr. Martens (EU) | On (EU) | Baseline (CM) |
|---|---|---|
| 36 | 39 | 22 |
| 37 | 39 | 22.5 |
| 37.5 | 39 | 23 |
| 38 | 39 | 23.5 |
| 38.5 | 39 | 24 |
| 39 | 39.5 | 24.5 |
| 40 | 40 | 25 |
| 41 | 40.5 | 25.5 |
| 42 | 41 | 26 |
| 43 | 42 | 26.5 |
| 43.5 | 42.5 | 27 |
| 44 | 43 | 27.5 |
| 44.5 | 44 | 28 |
| 45 | 44.5 | 28.5 |
| 45.5 | 45 | 29 |
| 46 | 46 | 29.5 |
| 46.5 | 47 | 30 |
FAQ
How do I convert Dr. Martens to On?
Use the converter above. We map sizes via official chart baselines (cm/EU) when available.
Do these brands run small or large?
Based on official charts, On EU labels are typically 0.0 compared to Dr. Martens for similar foot length (cm). Real fit can vary by model.
What if I’m between sizes?
If you prefer a snug fit, lean down; for extra room, lean up - and always check the brand’s model-specific guidance.