Reformation to rag & bone jeans size

The short answer

Reformation 29 is rag & bone 30 by the two brands' own charts. 3 of 9 Reformation sizes land on a different label at rag & bone.

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

Every Reformation size read across to rag & bone. Waist size sizes on the left, Waist size on the right.
Reformation	Reformation builds it for	rag & bone, by chart	Same label	rag & bone builds it for	rag & bone also prints
23	waist 23.5 in, hip 34 in	23 or 24	23	waist 23 in, hip 34.5 in	US numeric 00
24	waist 24.5 in, hip 35 in	24 or 25	24	waist 24 in, hip 35.5 in	US numeric 0
25	waist 25.5 in, hip 36 in	25 or 26	25	waist 25 in, hip 36.5 in	US numeric 2
26	waist 26.5 in, hip 37 in	26 or 27	26	waist 26 in, hip 37.5 in	US numeric 4
27	waist 27.5 in, hip 38 in	27 or 28	27	waist 27 in, hip 38.5 in	US numeric 6
28	waist 28.5 in, hip 39 in	28 or 29	28	waist 28 in, hip 39.5 in	US numeric 8
29	waist 30 in, hip 40.5 in	30	29	waist 30 in, hip 41.5 in	US numeric 10
30	waist 31.5 in, hip 42 in	31 or 32	30	waist 31 in, hip 42.5 in	US numeric 12
31	waist 33.3 in, hip 43.8 in	32 or 34	31	waist 32 in, hip 43.5 in	US numeric 14
32	waist 38.5 in, hip 49 in	not made	32	not published	not published
33	waist 39 in, hip 50 in	not made	not published	not published	not published
34	waist 40 in, hip 51 in	not made	34	not published	not published
35	waist 41 in, hip 52 in	not made	not published	not published	not published
36	waist 42 in, hip 53 in	not made	not published	not published	not published
38	waist 44 in, hip 55 in	not made	not published	not published	not published

Tinted rows change label or sit between two sizes. 6 sizes have no counterpart on the rag & bone 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

Reformation size guide, read on 2026-09-18. Reformation on TrueToSize
rag & bone size guide, read on 2026-09-18.

rag & bone to Reformation