A.P.C. to Gap jeans size
The short answer
A.P.C. 30 is Gap 12 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.
| A.P.C. | A.P.C. builds it for | Gap, by chart | Same label | Gap builds it for | Gap also prints |
|---|---|---|---|---|---|
| 24 | waist 26.5 in | 2 | not published | waist 26.5 in, hip 36.3 in | Letter XS |
| 25 | waist 27.5 in | 4 | not published | waist 27.5 in, hip 37.3 in | Letter S |
| 26 | waist 28.5 in | 6 | not published | waist 28.5 in, hip 38.3 in | Letter S |
| 27 | waist 29.5 in | 8 | not published | waist 29.5 in, hip 39.3 in | Letter M |
| 28 | waist 30.5 in | 10 | not published | waist 30.5 in, hip 40.3 in | Letter M |
| 29 | waist 31.5 in | 12 | not published | waist 32 in, hip 41.8 in | Letter L |
| 30 | waist 32.4 in | 12 | not published | waist 32 in, hip 41.8 in | Letter L |
| 31 | waist 33.4 in | 14 | not published | waist 33.5 in, hip 43.3 in | Letter L |
| 32 | waist 34.4 in | 14 or 16 | not published | waist 33.5 in, hip 43.3 in | Letter L |
| 33 | waist 35.4 in | 16 | not published | waist 35.5 in, hip 45.3 in | Letter XL |
| 34 | waist 36.4 in | 16 or 18 | not published | waist 35.5 in, hip 45.3 in | Letter XL |
| 35 | waist 37.4 in | 18 | not published | waist 37.5 in, hip 47.3 in | Letter XL |
| 36 | waist 38.4 in | 18 or 20 | not published | waist 37.5 in, hip 47.3 in | Letter XL |
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
- A.P.C. size guide, read on 2026-09-18.
- Gap size guide, read on 2026-09-17. Gap on TrueToSize