Match sizes by foot length (cm), then check model fit — US labels alone can mislead across brands.
Chart match · verify brand charts(paid link)
Full converter (model + shoes you own) · Reverse: New Balance → Jordan
Static conversion table (crawlable). Interactive tool above uses the same cm matching.
| Jordan US | cm | New Balance US | New Balance EU |
|---|---|---|---|
| 6.0 | 23.5 | 6.0 | 38.5 |
| 6.5 | 24.0 | 6.5 | 39.0 |
| 7.0 | 24.5 | 7.0 | 40.0 |
| 7.5 | 25.0 | 7.5 | 40.5 |
| 8.0 | 25.4 | 8.0 | 41.0 |
| 8.5 | 25.9 | 8.5 | 42.0 |
| 9.0 | 26.2 | 9.0 | 42.5 |
| 9.5 | 26.7 | 9.5 | 43.0 |
| 10.0 | 27.1 | 10.0 | 44.0 |
| 10.5 | 27.5 | 10.5 | 44.5 |
| 11.0 | 27.9 | 11.0 | 45.0 |
| 11.5 | 28.4 | 11.5 | 45.5 |
| 12.0 | 28.8 | 12.0 | 46.0 |
| 13.0 | 29.7 | 13.0 | 47.5 |
Jordan US 10 is 27.1 cm and the nearest New Balance US is also 10 (EU 44). The printed ladder is 1:1 from US 6 (23.5 cm) through US 13 (29.7 cm). The wear-box “Jordan 10 ≈ New Balance 10.0” is that centimeter match — it does not say Air Jordan 1 High and 990v6 share a last. Both columns print EU 44 at that US 10.
Air Jordan 1 High is the TTS length reference on this site; Air Jordan 4 Retro is TTS in length but narrow across the metatarsals (wide feet often half-up, especially on pre-2023 retros). New Balance is the width-letter toolkit: 574 and 990v6 publish D / 2E / 4E, while many 550 and 9060 colorways are D-only. A chart-matched AJ1 10 can still pinch in a 550 D and feel loose in a 990v6 2E.
Use 27.1 cm as the ticket, then pick the model and the letter. If you already half-up AJ4 for width, do not take that larger number into a 990v6 2E — you would stack a length bump on a width last. Half a size here is 26.7 → 27.1 → 27.5 cm. That is a length tweak, not a substitute for 2E.
Even when charts match, lasts differ. Check these guides:
Jordan: Air Jordan 1 High · Air Jordan 4 Retro
New Balance: 550 · 990v6 · 9060 · 574
Also compare Jordan to: Nike
Check prices: Jordan New Balance (paid link)
Clothes sizing uses a separate compare path.