Adidas to Nike size

The short answer

adidas 2XL is Nike XXL by the two brands' own charts. 1 of 7 adidas sizes land on a different label at Nike.

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

Every adidas size read across to Nike. Letter sizes on the left, Letter on the right.
adidas	adidas builds it for	Nike, by chart	Same label	Nike builds it for	Nike also prints
XS	chest 32.5 to 34 in, waist 27.5 to 29 in, hip 32 to 33.5 in	XS	XS	chest 31.5 to 35 in, waist 25.5 to 29 in, hip 31.5 to 35 in	not published
S	chest 34.5 to 36 in, waist 29.5 to 31.5 in, hip 34 to 36 in	S	S	chest 35 to 37.5 in, waist 29 to 32 in, hip 35 to 37.5 in	not published
M	chest 36.5 to 39 in, waist 32 to 34.5 in, hip 36.5 to 39 in	M	M	chest 37.5 to 41 in, waist 32 to 35 in, hip 37.5 to 41 in	not published
L	chest 39.5 to 42.5 in, waist 35 to 38 in, hip 39.5 to 42 in	L	L	chest 41 to 44 in, waist 35 to 38 in, hip 41 to 44 in	not published
XL	chest 43 to 46.5 in, waist 38.5 to 42 in, hip 42.5 to 45.5 in	XL	XL	chest 44 to 48.5 in, waist 38 to 43 in, hip 44 to 47 in	not published
2XL	chest 47 to 51 in, waist 42.5 to 47 in, hip 46 to 49 in	XXL	XXL	chest 48.5 to 53.5 in, waist 43 to 47.5 in, hip 47 to 50.5 in	not published
3XL	chest 51.5 to 56 in, waist 47.5 to 52 in, hip 49.5 to 53 in	3XL	3XL	chest 53.5 to 58 in, waist 47.5 to 52.5 in, hip 50.5 to 53.5 in	not published

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, not a fit. We do not collect fit reports for this category yet, so this table is the two brands' own claims and nothing more.

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Sources

adidas size guide, read on 2026-09-18. adidas on TrueToSize
Nike size guide, read on 2026-09-18. Nike on TrueToSize

Nike to adidas