Eloquii to J.Crew clothing size

The short answer

Eloquii 10 is J.Crew 12 by the two brands' own charts. 6 of 8 Eloquii sizes land on a different label at J.Crew.

Both brands publish the body bust each size is cut for, so every row matches a bust, not a letter or a number.

Every Eloquii size read across to J.Crew. US sizes on the left, US on the right.
Eloquii	Eloquii builds it for	J.Crew, by chart	Same label	J.Crew builds it for	J.Crew also prints
10	bust 39 to 41 in, waist 33 to 35 in, hip 42 to 44 in	12	10	bust 39.5 in, waist 31.5 in	Letter L · UK 16 · DE 40 · FR 44 · IT 48 · AU 16 · JP 15
12	bust 41 to 43 in, waist 35 to 37 in, hip 44 to 46 in	14 or 16	12	bust 41 in, waist 33 in	Letter L · UK 18 · DE 42 · FR 46 · IT 50 · AU 18 · JP 17
14	bust 43 to 45 in, waist 37 to 39 in, hip 46 to 48 in	16	14	bust 43.5 in, waist 35.5 in	Letter XL · UK 20 · DE 44 · FR 48 · IT 52 · AU 20 · JP 19
16	bust 45 to 47 in, waist 39 to 41 in, hip 48 to 50 in	18	16	bust 46 in, waist 38 in	Letter XXL / 1X · UK 22 · DE 46 · FR 50 · IT 54 · AU 22 · JP 21
18	bust 47 to 49 in, waist 41 to 43 in, hip 50 to 52 in	20	18	bust 48.5 in, waist 40.5 in	Letter 2X · UK 24 · DE 48 · FR 52 · IT 56 · AU 24 · JP 23
20	bust 49 to 51 in, waist 43 to 45 in, hip 52 to 54 in	22 or 20	20	bust 51 in, waist 43 in	Letter 3X
22	bust 51 to 53 in, waist 45 to 47 in, hip 54 to 56 in	22 or 24	22	bust 51 in, waist 43 in	Letter 3X
24	bust 53 to 55 in, waist 47 to 49 in, hip 56 to 58 in	24	24	bust 53.5 in, waist 45.5 in	Letter 3X
26	bust 56 to 58 in, waist 50 to 52 in, hip 59 to 61 in	not made	not published	not published	not published
28	bust 59 to 61 in, waist 53 to 55 in, hip 62 to 64 in	not made	not published	not published	not published
30	bust 62 to 65 in, waist 56 to 59 in, hip 65 to 68 in	not made	not published	not published	not published
32	bust 66 to 69 in, waist 60 to 63 in, hip 70 to 73 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 J.Crew 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

Eloquii size guide, read on 2026-09-18.
J.Crew size guide, read on 2026-09-18.

J.Crew to Eloquii