👟 Brand to Brand
New Balance to On Shoe Size Conversion
Switching from New Balance to On? New Balance runs true to size and On runs true to size, so the size you order changes. Here's the full chart.
Because New Balance and On share the same fit tendency, your size carries straight across: a New Balance 9 is a On 9.
New Balance and On run the same
Order the same number — a New Balance 9 is a On 9.
Find your New Balance size on the left, read across for On:
| New Balance size | On size | UK | EU | Foot (cm) |
|---|---|---|---|---|
| 6.5 | 6.5 | 5.5 | 37 | 23.5 |
| 7 | 7 | 6 | 38 | 24.3 |
| 7.5 | 7.5 | 6.5 | 38.5 | 24.7 |
| 8 | 8 | 7 | 39.5 | 25.1 |
| 8.5 | 8.5 | 7.5 | 41 | 25.9 |
| 9 | 9 | 8 | 41.5 | 26.3 |
| 9.5 | 9.5 | 8.5 | 42.5 | 26.7 |
| 10 | 10 | 9 | 43 | 27.1 |
| 10.5 | 10.5 | 9.5 | 43.5 | 27.5 |
| 11 | 11 | 10 | 44 | 27.9 |
| 11.5 | 11.5 | 10.5 | 44.5 | 28.3 |
| 12 | 12 | 11 | 45.5 | 28.7 |
| 12.5 | 12.5 | 11.5 | 46 | 29.1 |
| 13 | 13 | 12 | 47 | 29.5 |
| 13.5 | 13.5 | 12.5 | 47.5 | 29.9 |
| 14 | 14 | 13 | 48 | 30.3 |
| 14.5 | 14.5 | 13.5 | 49 | 31.1 |
| 15 | 15 | 14 | 49.5 | 31.5 |
⚠️ Fit varies by model. New Balance runs true to size and is one of the best brands for width options (2A to 4E). On (On Running) runs true to size for most, with a snug, performance fit.
On to New Balance → · New Balance chart · On chart · Brand finder
What is a New Balance 9 in On?
A New Balance 9 is about a On 9 — they share a foot length of roughly 26.3 cm (UK 8, EU 41.5).
Do New Balance and On fit the same?
Roughly, yes — both run true to size, so the same number fits.
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