J.Crew to Whistles clothing size
The short answer
J.Crew 000 is Whistles 06 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.
On 1 sizes the charts land two or more sizes from the same label. Brands do not measure the body the same way, so on those rows treat the chart answer and the same label as the two ends of a range.
| J.Crew | J.Crew builds it for | Whistles, by chart | Same label | Whistles builds it for | Whistles also prints |
|---|---|---|---|---|---|
| 000 | bust 31 in, waist 23 in | 06 | not published | bust 31 in, waist 24.5 in, hip 35.5 in | not published |
| 000 | bust 31 in, waist 23 in | 06 | not published | bust 31 in, waist 24.5 in, hip 35.5 in | not published |
| 000 | bust 31 in, waist 23 in | 06 | not published | bust 31 in, waist 24.5 in, hip 35.5 in | not published |
| 2 | bust 34 in, waist 26 in | 10 | 06 | bust 34 in, waist 27.5 in, hip 38.5 in | not published |
| 4 | bust 35 in, waist 27 in | 10 or 12 | 08 | bust 34 in, waist 27.5 in, hip 38.5 in | not published |
| 6 | bust 36 in, waist 28 in | 12 | 10 | bust 36 in, waist 29.5 in, hip 40.5 in | not published |
| 8 | bust 37 in, waist 29 in | 12 or 14 | 12 | bust 36 in, waist 29.5 in, hip 40.5 in | not published |
| 10 | bust 38 in, waist 30 in | 14 | 14 | bust 38 in, waist 31.5 in, hip 42.5 in | not published |
| 12 | bust 39.5 in, waist 31.5 in | 16 | 16 | bust 40 in, waist 33.5 in, hip 44.5 in | not published |
| 14 | bust 41 in, waist 33 in | 16 or 18 | 18 | bust 40 in, waist 33.5 in, hip 44.5 in | not published |
| 16 | bust 43.5 in, waist 35.5 in | 18 or 20 | 20 | bust 42.5 in, waist 35.5 in, hip 46.5 in | not published |
| 18 | bust 46 in, waist 38 in | 20 | not published | bust 45 in, waist 38 in, hip 49 in | not published |
| 20 | bust 48.5 in, waist 40.5 in | not made | not published | not published | not published |
| 22 | bust 51 in, waist 43 in | not made | not published | not published | not published |
| 24 | bust 53.5 in, waist 45.5 in | not made | not published | not published | not published |
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
- J.Crew size guide, read on 2026-09-18.
- Whistles size guide, read on 2026-09-18.