J.Crew to Diane von Furstenberg clothing size

The short answer

J.Crew 000 is Diane von Furstenberg XXS 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.

Every J.Crew size read across to Diane von Furstenberg. US sizes on the left, Letter on the right.
J.Crew	J.Crew builds it for	Diane von Furstenberg, by chart	Same label	Diane von Furstenberg builds it for	Diane von Furstenberg also prints
000	bust 31 in, waist 23 in	XXS	not published	bust 31 in, waist 24 in, hip 34 in	US 00
000	bust 31 in, waist 23 in	XXS	not published	bust 31 in, waist 24 in, hip 34 in	US 00
000	bust 31 in, waist 23 in	XXS	not published	bust 31 in, waist 24 in, hip 34 in	US 00
2	bust 34 in, waist 26 in	S	XS	bust 33 to 34 in, waist 26 to 27 in, hip 36 to 37 in	US 2/4
4	bust 35 in, waist 27 in	M	S	bust 35 to 36 in, waist 28 to 29 in, hip 38 to 39 in	US 6/8
6	bust 36 in, waist 28 in	M	S	bust 35 to 36 in, waist 28 to 29 in, hip 38 to 39 in	US 6/8
8	bust 37 in, waist 29 in	L	M	bust 37 to 38.5 in, waist 30 to 31.5 in, hip 40 to 41.5 in	US 10/12
10	bust 38 in, waist 30 in	L	M	bust 37 to 38.5 in, waist 30 to 31.5 in, hip 40 to 41.5 in	US 10/12
12	bust 39.5 in, waist 31.5 in	XL or L	L	bust 40 to 42 in, waist 33 to 35 in, hip 43 to 45 in	US 14/16
14	bust 41 in, waist 33 in	XL	L	bust 40 to 42 in, waist 33 to 35 in, hip 43 to 45 in	US 14/16
16	bust 43.5 in, waist 35.5 in	XL	XL	bust 40 to 42 in, waist 33 to 35 in, hip 43 to 45 in	US 14/16
18	bust 46 in, waist 38 in	not made	not published	not published	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

Tinted rows change label or sit between two sizes. 4 sizes have no counterpart on the Diane von Furstenberg chart. Read from the two charts only; no formula and no averaging.

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.

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Sources

J.Crew size guide, read on 2026-09-18.
Diane von Furstenberg size guide, read on 2026-09-18.

Diane von Furstenberg to J.Crew