Reformation to AGOLDE jeans size

The short answer

Reformation 30 is AGOLDE 31 by the two brands' own charts. 2 of 9 Reformation sizes land on a different label at AGOLDE.

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

On 1 sizes the charts land two or more sizes from the same label. Brands do not measure the body the same way, so on those rows treat the chart answer and the same label as the two ends of a range.

Every Reformation size read across to AGOLDE. Waist size sizes on the left, Waist size on the right.
Reformation	Reformation builds it for	AGOLDE, by chart	Same label	AGOLDE builds it for	AGOLDE also prints
23	waist 23.5 in, hip 34 in	23	23	waist 23.5 in, hip 33.5 in	not published
24	waist 24.5 in, hip 35 in	24	24	waist 24.5 in, hip 34.5 in	Letter XS
25	waist 25.5 in, hip 36 in	25	25	waist 25.5 in, hip 35.5 in	US numeric 0 · Letter XS
26	waist 26.5 in, hip 37 in	26	26	waist 26.5 in, hip 36.5 in	US numeric 2 · Letter S
27	waist 27.5 in, hip 38 in	27	27	waist 27.5 in, hip 37.5 in	US numeric 4 · Letter S
28	waist 28.5 in, hip 39 in	28	28	waist 28.5 in, hip 38.5 in	US numeric 6 · Letter M
29	waist 30 in, hip 40.5 in	29 or 30	29	waist 29.5 in, hip 39.5 in	US numeric 8 · Letter M
30	waist 31.5 in, hip 42 in	31	30	waist 31.5 in, hip 41.5 in	US numeric 10 · Letter L
31	waist 33.3 in, hip 43.8 in	33	31	waist 33.5 in, hip 43.5 in	US numeric 12 · Letter XL
32	waist 38.5 in, hip 49 in	not made	32	not published	not published
33	waist 39 in, hip 50 in	not made	33	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 AGOLDE 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
AGOLDE size guide, read on 2026-09-18. AGOLDE on TrueToSize

AGOLDE to Reformation