Talbots to Gap clothing size

The short answer

Talbots S is Gap 4 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 Talbots size read across to Gap. Letter sizes on the left, US on the right.
Talbots	Talbots builds it for	Gap, by chart	Same label	Gap builds it for	Gap also prints
XS	bust 33 in, waist 26 in, hip 36 in	2	2	bust 33.3 in, waist 26.5 in, hip 36.3 in	Letter XS
S	bust 34 to 35 in, waist 27 to 28 in, hip 37 to 38 in	4	not published	bust 34.3 in, waist 27.5 in, hip 37.3 in	Letter S
M	bust 36 to 37 in, waist 29 to 30 in, hip 39 to 40 in	8	not published	bust 36.3 in, waist 29.5 in, hip 39.3 in	Letter M
L	bust 38.5 to 40 in, waist 31.5 to 33 in, hip 41.5 to 43 in	12	not published	bust 38.8 in, waist 32 in, hip 41.8 in	Letter L
XL	bust 41.5 to 43.5 in, waist 34.5 to 36.5 in, hip 44.5 to 46.5 in	16	not published	bust 42 in, waist 35.5 in, hip 45.3 in	Letter XL

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

Talbots size guide, read on 2026-09-18.
Gap size guide, read on 2026-09-18. Gap on TrueToSize

Gap to Talbots