Nike to adidas leggings size
The short answer
Nike XXS is adidas 2XS by the two brands' own charts. 7 of 11 Nike sizes land on a different label at adidas.
Both brands publish the body waist each size is cut for, so every row matches a waist, not a tag.
On 4 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.
| Nike | Nike builds it for | adidas, by chart | Same label | adidas builds it for | adidas also prints |
|---|---|---|---|---|---|
| XXS | waist 21.3 to 23.5 in, hip 30.5 to 33 in | 2XS | 2XS | waist 22 to 23.5 in, hip 31.5 to 33 in, inseam 30.5 in | US numeric 00 |
| XS | waist 23.5 to 26 in, hip 33 to 35.5 in | XS | XS | waist 24 to 26 in, hip 33.5 to 35.5 in, inseam 31 in | US numeric 0-2 |
| S | waist 26 to 29 in, hip 35.5 to 38.5 in | S | S | waist 26.5 to 28.5 in, hip 36 to 38 in, inseam 31 in | US numeric 4-6 |
| M | waist 29 to 31.5 in, hip 38.5 to 41 in | M | M | waist 29 to 31 in, hip 38.5 to 40.5 in, inseam 31.5 in | US numeric 8-10 |
| L | waist 31.5 to 34.5 in, hip 41 to 44 in | L | L | waist 31.5 to 33.5 in, hip 41 to 43 in, inseam 31.5 in | US numeric 12-14 |
| XL | waist 34.5 to 38.5 in, hip 44 to 47 in | 1X | XL | waist 35 to 38.5 in, hip 43.5 to 47 in, inseam 31 in | US numeric 14W-16W |
| XXL | waist 38.5 to 42.5 in, hip 47 to 50 in | 2X | 2XL | waist 39 to 42.5 in, hip 47.5 to 51 in, inseam 31 in | US numeric 18W-20W |
| 0X | waist 40 to 43 in, hip 48 to 51 in | 2X | not published | waist 39 to 42.5 in, hip 47.5 to 51 in, inseam 31 in | US numeric 18W-20W |
| 1X | waist 43 to 45.5 in, hip 51 to 54 in | 3X | 1X | waist 43 to 46.5 in, hip 51.5 to 55 in, inseam 30.5 in | US numeric 22W-24W |
| 2X | waist 45.5 to 49 in, hip 54 to 57 in | 4X | 2X | waist 47 to 50.5 in, hip 55.5 to 59 in, inseam 30 in | US numeric 26W-28W |
| 3X | waist 49 to 53 in, hip 57 to 61 in | 4X | 3X | waist 47 to 50.5 in, hip 55.5 to 59 in, inseam 30 in | US numeric 26W-28W |
| 4X | waist 53 to 57 in, hip 61 to 65 in | not made | 4X | not published | not published |
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.
Sources
- Nike size guide, read on 2026-09-17. Nike on TrueToSize
- adidas size guide, read on 2026-09-18. adidas on TrueToSize