Whistles to J.Crew clothing size
The short answer
Whistles 14 is J.Crew 10 by the two brands' own charts.
Both brands publish the body bust each size is cut for, so every row matches a bust, not a letter or a number.
| Whistles | Whistles builds it for | J.Crew, by chart | Same label | J.Crew builds it for | J.Crew also prints |
|---|---|---|---|---|---|
| 04 | bust 30 in, waist 23.5 in, hip 34.5 in | not made | not published | not published | not published |
| 06 | bust 31 in, waist 24.5 in, hip 35.5 in | 000 | not published | bust 31 in, waist 23 in | Letter XXXS · UK 0 · DE 24 · FR 28 · IT 32 · AU 0 · JP 1 |
| 08 | bust 32 in, waist 25.5 in, hip 36.5 in | 00 | not published | bust 32 in, waist 24 in | Letter XXS · UK 2 · DE 26 · FR 30 · IT 34 · AU 2 · JP 1 |
| 10 | bust 34 in, waist 27.5 in, hip 38.5 in | 2 | not published | bust 34 in, waist 26 in | Letter XS · UK 6 · DE 30 · FR 34 · IT 38 · AU 6 · JP 5 |
| 12 | bust 36 in, waist 29.5 in, hip 40.5 in | 6 | not published | bust 36 in, waist 28 in | Letter S · UK 10 · DE 34 · FR 38 · IT 42 · AU 10 · JP 9 |
| 14 | bust 38 in, waist 31.5 in, hip 42.5 in | 10 | not published | bust 38 in, waist 30 in | Letter M · UK 14 · DE 38 · FR 42 · IT 46 · AU 14 · JP 13 |
| 16 | bust 40 in, waist 33.5 in, hip 44.5 in | 12 | not published | bust 39.5 in, waist 31.5 in | Letter L · UK 16 · DE 40 · FR 44 · IT 48 · AU 16 · JP 15 |
| 18 | bust 42.5 in, waist 35.5 in, hip 46.5 in | 16 or 14 | not published | bust 43.5 in, waist 35.5 in | Letter XL · UK 20 · DE 44 · FR 48 · IT 52 · AU 20 · JP 19 |
| 20 | bust 45 in, waist 38 in, hip 49 in | 18 or 16 | not published | bust 46 in, waist 38 in | Letter XXL / 1X · UK 22 · DE 46 · FR 50 · IT 54 · AU 22 · JP 21 |
What wearers say
Charts describe a garment, not a fit. We do not collect fit reports for this category yet, so this table is the two brands' own claims and nothing more.
Sources
- Whistles size guide, read on 2026-09-18.
- J.Crew size guide, read on 2026-09-18.