Acne Studios to A.P.C. jeans size

The short answer

Acne Studios 40 is A.P.C. 27 or 28 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 Acne Studios size read across to A.P.C.. US numeric sizes on the left, Waist size on the right.
Acne Studios	Acne Studios builds it for	A.P.C., by chart	Same label	A.P.C. builds it for	A.P.C. also prints
30	waist 22 in, hip 32 in	not made	not published	not published	not published
32	waist 23.5 in, hip 33 in	not made	not published	not published	not published
34	waist 25 in, hip 34.5 in	not made	not published	not published	not published
36	waist 26.5 in, hip 36 in	24	not published	waist 26.5 in	not published
38	waist 28 in, hip 37.5 in	25 or 26	not published	waist 27.5 in	not published
40	waist 30 in, hip 39.5 in	27 or 28	not published	waist 29.5 in	not published
42	waist 31.5 in, hip 42.5 in	29	not published	waist 31.5 in	not published
44	waist 33 in, hip 44.5 in	31 or 30	not published	waist 33.4 in	not published

Tinted rows change label or sit between two sizes. 3 sizes have no counterpart on the A.P.C. 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

Acne Studios size guide, read on 2026-09-18.
A.P.C. size guide, read on 2026-09-18.

A.P.C. to Acne Studios