On Running
Our tool compares official On Running size charts to find your perfect size. No measuring needed.
Frequently Asked Questions About On Running Sizing
No, On Running sizing varies by model. Some On Running styles run small while others run large. Check our model-specific guides below for exact fit information.
Use our On Running size conversion charts above. On Running uses standard European sizing. EU 40 = US 7 (women) or US 7.5 (men) = UK 6.5. For exact conversions, see the charts on this page.
On Running uses European sizing which tends to be consistent with other European brands. Compared to Nike or Adidas, you may need to check each model as fit varies. Use our size finder tool for accurate cross-brand comparison.
On Running is a Swiss performance running shoe brand founded in 2010, known for its innovative CloudTec cushioning technology. The brand combines Swiss engineering with a focus on comfort and performance.
On Running shoes generally fit true to size with a secure, performance-oriented fit. The brand uses a unique lacing system that provides a snug midfoot while allowing toe splay.
Order your normal running shoe size for On Running. If you prefer a roomier fit or plan to wear thick socks, consider going up half a size.