TrueToSize

Convert / Women's clothing

Gap to Whistles clothing size

The short answer

Gap 8 is Whistles 12 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 Whistles. US sizes on the left, UK on the right.
GapGap builds it forWhistles, by chartSame labelWhistles builds it forWhistles also prints
000bust 30.3 in, waist 24 in, hip 33.3 in04not publishedbust 30 in, waist 23.5 in, hip 34.5 innot published
000bust 30.3 in, waist 24 in, hip 33.3 in04not publishedbust 30 in, waist 23.5 in, hip 34.5 innot published
000bust 30.3 in, waist 24 in, hip 33.3 in04not publishedbust 30 in, waist 23.5 in, hip 34.5 innot published
2bust 33.3 in, waist 26.5 in, hip 36.3 in10 or 08not publishedbust 34 in, waist 27.5 in, hip 38.5 innot published
4bust 34.3 in, waist 27.5 in, hip 37.3 in10not publishedbust 34 in, waist 27.5 in, hip 38.5 innot published
6bust 35.3 in, waist 28.5 in, hip 38.3 in12 or 10not publishedbust 36 in, waist 29.5 in, hip 40.5 innot published
8bust 36.3 in, waist 29.5 in, hip 39.3 in12not publishedbust 36 in, waist 29.5 in, hip 40.5 innot published
10bust 37.3 in, waist 30.5 in, hip 40.3 in14 or 12not publishedbust 38 in, waist 31.5 in, hip 42.5 innot published
12bust 38.8 in, waist 32 in, hip 41.8 in14 or 16not publishedbust 38 in, waist 31.5 in, hip 42.5 innot published
14bust 40.3 in, waist 33.5 in, hip 43.3 in16not publishedbust 40 in, waist 33.5 in, hip 44.5 innot published
16bust 42 in, waist 35.5 in, hip 45.3 in18not publishedbust 42.5 in, waist 35.5 in, hip 46.5 innot published
18bust 43.8 in, waist 37.5 in, hip 47.3 in18 or 20not publishedbust 42.5 in, waist 35.5 in, hip 46.5 innot published
20bust 45.8 in, waist 39.5 in, hip 49.3 in20not publishedbust 45 in, waist 38 in, hip 49 innot published
22bust 47.8 in, waist 41.5 in, hip 51.3 innot madenot publishednot publishednot published
Tinted rows change label or sit between two sizes. 1 sizes have no counterpart on the Whistles 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.

Open in the converterAdd an item you own

Sources

Whistles to Gap