TrueToSize

Convert / Women's clothing

Gap to Nike clothing size

The short answer

Gap 000 is Nike 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 Gap size read across to Nike. US sizes on the left, Letter on the right.
GapGap builds it forNike, by chartSame labelNike builds it forNike also prints
000bust 30.3 in, waist 24 in, hip 33.3 inXSXXSbust 29.5 to 32.5 in, waist 23.5 to 26 in, hip 33 to 35.5 innot published
000bust 30.3 in, waist 24 in, hip 33.3 inXSXXSbust 29.5 to 32.5 in, waist 23.5 to 26 in, hip 33 to 35.5 innot published
000bust 30.3 in, waist 24 in, hip 33.3 inXSXXSbust 29.5 to 32.5 in, waist 23.5 to 26 in, hip 33 to 35.5 innot published
2bust 33.3 in, waist 26.5 in, hip 36.3 inSXSbust 32.5 to 35.5 in, waist 26 to 29 in, hip 35.5 to 38.5 innot published
4bust 34.3 in, waist 27.5 in, hip 37.3 inSSbust 32.5 to 35.5 in, waist 26 to 29 in, hip 35.5 to 38.5 innot published
6bust 35.3 in, waist 28.5 in, hip 38.3 inSSbust 32.5 to 35.5 in, waist 26 to 29 in, hip 35.5 to 38.5 innot published
8bust 36.3 in, waist 29.5 in, hip 39.3 inMMbust 35.5 to 38 in, waist 29 to 31.5 in, hip 38.5 to 41 innot published
10bust 37.3 in, waist 30.5 in, hip 40.3 inMMbust 35.5 to 38 in, waist 29 to 31.5 in, hip 38.5 to 41 innot published
12bust 38.8 in, waist 32 in, hip 41.8 inLLbust 38 to 41 in, waist 31.5 to 34.5 in, hip 41 to 44 innot published
14bust 40.3 in, waist 33.5 in, hip 43.3 inLLbust 38 to 41 in, waist 31.5 to 34.5 in, hip 41 to 44 innot published
16bust 42 in, waist 35.5 in, hip 45.3 inXLXLbust 41 to 44.5 in, waist 34.5 to 38.5 in, hip 44 to 47 innot published
18bust 43.8 in, waist 37.5 in, hip 47.3 inXLXLbust 41 to 44.5 in, waist 34.5 to 38.5 in, hip 44 to 47 innot published
20bust 45.8 in, waist 39.5 in, hip 49.3 inXXLXXLbust 44.5 to 48.5 in, waist 38.5 to 42.5 in, hip 47 to 50 innot published
22bust 47.8 in, waist 41.5 in, hip 51.3 inXXLXXLbust 44.5 to 48.5 in, waist 38.5 to 42.5 in, hip 47 to 50 innot published
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

Nike to Gap