Uniqlo to Gap jeans size
The short answer
Uniqlo 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.
| Uniqlo | Uniqlo builds it for | Gap, by chart | Same label | Gap builds it for | Gap also prints |
|---|---|---|---|---|---|
| 22 | waist 22 in | not made | not published | not published | not published |
| 23 | waist 23 in | not made | not published | not published | not published |
| 24 | waist 24 in | 000 | not published | waist 24 in, hip 33.3 in | Letter XXS |
| 25 | waist 25 in | 00 | not published | waist 24.8 in, hip 34.3 in | Letter XXS |
| 26 | waist 26 in | 0 or 2 | not published | waist 25.5 in, hip 35.3 in | Letter XS |
| 27 | waist 27 in | 2 or 4 | not published | waist 26.5 in, hip 36.3 in | Letter XS |
| 28 | waist 28 in | 4 or 6 | not published | waist 27.5 in, hip 37.3 in | Letter S |
| 29 | waist 29 in | 6 or 8 | not published | waist 28.5 in, hip 38.3 in | Letter S |
| 30 | waist 30 in | 8 or 10 | not published | waist 29.5 in, hip 39.3 in | Letter M |
| 32 | waist 32 in | 12 | not published | waist 32 in, hip 41.8 in | Letter L |
| 34 | waist 34 in | 14 | not published | waist 33.5 in, hip 43.3 in | Letter L |
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.
Sources
- Uniqlo size guide, read on 2026-09-18. Uniqlo on TrueToSize
- Gap size guide, read on 2026-09-17. Gap on TrueToSize