TrueToSize

Convert / Jeans

Guess to Gap jeans size

The short answer

Guess 28 is Gap 4 or 6 by the two brands' own charts.

Both brands publish the body waist each size is cut for, so every row matches a waist, not a tag.

Every Guess size read across to Gap. Waist size sizes on the left, US numeric on the right.
GuessGuess builds it forGap, by chartSame labelGap builds it forGap also prints
23waist 23 in, hip 33.5 innot madenot publishednot publishednot published
24waist 24 in, hip 34.5 in000not publishedwaist 24 in, hip 33.3 inLetter XXS
25waist 25 in, hip 35.5 in00not publishedwaist 24.8 in, hip 34.3 inLetter XXS
26waist 26 in, hip 36.5 in0 or 2not publishedwaist 25.5 in, hip 35.3 inLetter XS
27waist 27 in, hip 37.5 in2 or 4not publishedwaist 26.5 in, hip 36.3 inLetter XS
28waist 28 in, hip 38.5 in4 or 6not publishedwaist 27.5 in, hip 37.3 inLetter S
29waist 29 in, hip 39.5 in6 or 8not publishedwaist 28.5 in, hip 38.3 inLetter S
30waist 30 in, hip 40.5 in8 or 10not publishedwaist 29.5 in, hip 39.3 inLetter M
31waist 31.5 in, hip 42 in12not publishedwaist 32 in, hip 41.8 inLetter L
32waist 33 in, hip 43.5 in14not publishedwaist 33.5 in, hip 43.3 inLetter L
Tinted rows change label or sit between two sizes. 1 sizes have no counterpart on the Gap chart. Read from the two charts only; no formula and no averaging.

What wearers say

Charts describe a garment. People who own both brands describe a fit, and their answer ranks above this table once five of them stand behind it. Pick your size in the converter to see whether there are enough yet.

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Sources

Gap to Guess