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Convert / Women's clothing

Banana Republic to Reformation clothing size

The short answer

Banana Republic 18 is Reformation 1X 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 Banana Republic size read across to Reformation. US sizes on the left, Letter on the right.
Banana RepublicBanana Republic builds it forReformation, by chartSame labelReformation builds it forReformation also prints
000bust 30.5 in, waist 24 in, hip 33.5 innot madenot publishednot publishednot published
000bust 30.5 in, waist 24 in, hip 33.5 innot madenot publishednot publishednot published
000bust 30.5 in, waist 24 in, hip 33.5 innot madenot publishednot publishednot published
2bust 33.5 in, waist 27 in, hip 36.5 inXSXSbust 33 in, waist 25 in, hip 36 inUS 0
4bust 34.5 in, waist 28 in, hip 37.5 inSSbust 35 in, waist 27 in, hip 38 inUS 2/4
6bust 35.5 in, waist 29 in, hip 38.5 inSSbust 35 in, waist 27 in, hip 38 inUS 2/4
8bust 36.5 in, waist 30 in, hip 39.5 inMMbust 37 in, waist 29 in, hip 40 inUS 6/8
10bust 37.5 in, waist 31 in, hip 40.5 inMMbust 37 in, waist 29 in, hip 40 inUS 6/8
12bust 39 in, waist 32.5 in, hip 42 inLLbust 39.5 in, waist 31.5 in, hip 42.5 inUS 10
14bust 40.5 in, waist 34 in, hip 43.5 inL or XLLbust 39.5 in, waist 31.5 in, hip 42.5 inUS 10
16bust 42.5 in, waist 36 in, hip 45.5 inXLXLbust 41.5 in, waist 33.5 in, hip 44.5 inUS 12
18bust 44.5 in, waist 38 in, hip 47.5 in1XXLbust 45 in, waist 37.5 in, hip 47.5 inUS 14
20bust 47.5 in, waist 41 in, hip 50.5 in2Xnot publishedbust 48 in, waist 40.5 in, hip 50.5 inUS 16/18
Tinted rows change label or sit between two sizes. 3 sizes have no counterpart on the Reformation 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

Reformation to Banana Republic