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Convert / Women's clothing

Boden to Athleta clothing size

The short answer

Boden 4 is Athleta XS 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 Boden size read across to Athleta. US sizes on the left, Letter on the right.
BodenBoden builds it forAthleta, by chartSame labelAthleta builds it forAthleta also prints
2bust 32 to 33 in, waist 25 to 26 in, hip 34 to 35 inXSXSbust 32.5 to 33.5 in, waist 25.3 to 26.3 in, hip 35 to 36 inUS 0-2
4bust 33.3 to 34 in, waist 26.3 to 27 in, hip 35.3 to 36 inXSSbust 32.5 to 33.5 in, waist 25.3 to 26.3 in, hip 35 to 36 inUS 0-2
6bust 34.3 to 35 in, waist 27.3 to 28 in, hip 36.3 to 37 inSSbust 34.5 to 35.5 in, waist 27.3 to 28.3 in, hip 37 to 38 inUS 4-6
8bust 35.5 to 37 in, waist 28.5 to 30 in, hip 37.5 to 39 inMMbust 36.5 to 37.5 in, waist 29.3 to 30.3 in, hip 39 to 40 inUS 8-10
10bust 37.5 to 39 in, waist 30.5 to 32 in, hip 39.5 to 41 inM or LMbust 36.5 to 37.5 in, waist 29.3 to 30.3 in, hip 39 to 40 inUS 8-10
12bust 39.5 to 41 in, waist 32.5 to 34 in, hip 41.5 to 43 inLLbust 39 to 40.5 in, waist 31.8 to 33.3 in, hip 41.5 to 43 inUS 12-14
14bust 41.5 to 43 in, waist 34.5 to 36 in, hip 43.5 to 45 inXLLbust 42 in, waist 34.3 in, hip 44.5 inUS 16-18
16bust 43.5 to 45 in, waist 36.5 to 38 in, hip 45.5 to 47 in1XXLbust 44.3 to 46.3 in, waist 38 to 40 in, hip 47.3 to 49.3 inUS 16W-18W
18bust 45.5 to 47.5 in, waist 38.5 to 40.5 in, hip 47.5 to 49.5 in1XXLbust 44.3 to 46.3 in, waist 38 to 40 in, hip 47.3 to 49.3 inUS 16W-18W
Tinted rows change label or sit between two sizes. 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

Athleta to Boden