Colorfulkoala to Old Navy leggings size

The short answer

Colorfulkoala XL is Old Navy L by the two brands' own charts. 2 of 7 Colorfulkoala sizes land on a different label at Old Navy.

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

Every Colorfulkoala size read across to Old Navy. Letter sizes on the left, Letter on the right.
Colorfulkoala	Colorfulkoala builds it for	Old Navy, by chart	Same label	Old Navy builds it for	Old Navy also prints
XXS	waist 23 to 24 in, hip 32.5 to 33.5 in, inseam 25 in	XXS	XXS	waist 24 in, hip 34.5 in	US numeric 00
XS	waist 25 to 26 in, hip 34.5 to 35.5 in, inseam 25 in	XS	XS	waist 25 to 26 in, hip 35.5 to 36.5 in	US numeric 0-2
S	waist 27 to 28 in, hip 36.5 to 37.5 in, inseam 25 in	S	S	waist 27 to 28 in, hip 37.5 to 38.5 in	US numeric 4-6
M	waist 29 to 30 in, hip 38.5 to 39.5 in, inseam 25 in	M	M	waist 29 to 30 in, hip 39.5 to 40.5 in	US numeric 8-10
L	waist 31 to 32 in, hip 40.5 to 41.5 in, inseam 25 in	L	L	waist 31.5 to 33.5 in, hip 42 to 44 in	US numeric 12-14
XL	waist 33 to 34 in, hip 42.5 to 43.5 in, inseam 25 in	L	XL	waist 31.5 to 33.5 in, hip 42 to 44 in	US numeric 12-14
XXL	waist 35 to 36 in, hip 44.5 to 45.5 in, inseam 25 in	XL or L	XXL	waist 36.3 to 39 in, hip 46.5 to 49 in	US numeric 16-18

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

Colorfulkoala size guide, read on 2026-09-18. Colorfulkoala on TrueToSize
Old Navy size guide, read on 2026-09-17. Old Navy on TrueToSize

Old Navy to Colorfulkoala