New Balance Shoe Size Guide (UK)
New Balance runs large: 45% of wearers report a true fit, 5% find it small and 50% find it large. Use the table below to convert your foot length in millimetres straight to UK, US, EU and CM sizes — the one measurement every system agrees on. Wide-foot widths are offered, so most foot shapes can find a fit.
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New Balance size conversion table
| Foot length | UK | EU | US Men | US Women | CM |
|---|---|---|---|---|---|
| 240mm | 5.5 | 36 | 6.5 | 8 | 24 |
| 250mm | 6.5 | 38 | 7.5 | 9 | 25 |
| 260mm | 7.5 | 39 | 8.5 | 10 | 26 |
| 270mm | 9 | 41 | 10 | 11.5 | 27 |
| 280mm | 10 | 42 | 11 | 12.5 | 28 |
| 290mm | 11.5 | 44 | 12.5 | 14 | 29 |
| 300mm | 12.5 | 45 | 13.5 | 15 | 30 |
EU sizes are always rounded to a whole size — there is no exact half-size equivalent, so treat the EU column as the closest honest match.
Does New Balance run big or small?
New Balance often runs slightly large — many wearers go down half a size compared with Nike.
How New Balance fits
Across our data New Balance runs large. Of wearers, 5% report it runs small, 45% true to size, and 50% large.
| Runs small | True to size | Runs large |
|---|---|---|
| 5% | 45% | 50% |
New Balance width & wide feet
Where this data comes from
Built from 1 New Balance record . See how we calculate for how confidence is scored.
How did New Balance fit you?
Anonymous - no account needed, no email required. Your answer feeds our fit data and helps the next buyer get the right size.