On vs Saucony shoe sizing
Compare shoe sizing between On and Saucony
Conversion table (Women)
| On (EU) | Saucony (EU) | Baseline |
|---|---|---|
| 35.0 | 36.0 | cm |
| 36.0 | 37.0 | cm |
| 36.5 | 37.5 | cm |
| 37.0 | 38.0 | cm |
| 37.5 | 38.5 | cm |
| 38.0 | 39.0 | cm |
| 38.5 | 40.0 | cm |
| 39.0 | 40.5 | cm |
| 40.0 | 41.0 | cm |
| 40.5 | 42.0 | cm |
| 41.0 | 42.5 | cm |
| 42.0 | 43.0 | cm |
FAQ
How do I convert On to Saucony?
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, Saucony EU labels are typically +1.0 compared to On 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.