Lucky Brand to Universal Standard jeans size

The short answer

Lucky Brand 10 is Universal Standard 8 by the two brands' own charts. 1 of 6 Lucky Brand sizes land on a different label at Universal Standard.

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

Every Lucky Brand size read across to Universal Standard. US numeric sizes on the left, US numeric on the right.
Lucky Brand	Lucky Brand builds it for	Universal Standard, by chart	Same label	Universal Standard builds it for	Universal Standard also prints
0	waist 25.5 in, hip 36 in	0	00	waist 25 to 26 in, hip 35 to 36 in	Letter 4XS
2	waist 26.5 in, hip 37 in	2	2	waist 26 to 27 in, hip 36 to 37 in	Letter 3XS
4	waist 27.5 in, hip 38 in	4	4	waist 27 to 28 in, hip 37 to 38 in	Letter 3XS
6	waist 28.5 in, hip 39 in	6	6	waist 28 to 29 in, hip 38 to 39 in	Letter 2XS
8	waist 29.5 in, hip 40 in	8	8	waist 29 to 31 in, hip 39 to 40 in	Letter 2XS
10	waist 30.5 in, hip 41 in	8	10	waist 29 to 31 in, hip 39 to 40 in	Letter 2XS

Tinted rows change label or sit between two sizes. 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

Lucky Brand size guide, read on 2026-09-18.
Universal Standard size guide, read on 2026-09-18. Universal Standard on TrueToSize

Universal Standard to Lucky Brand