Zara kids size guide
The cut is slim. Size up unless your child is too.
Zara sizes by height, but its waist targets sit at the lower end of the big brands: the slim reputation is measurable, not folklore. For a slim child the height size fits and lasts; for an average or broad build, one size up is the honest advice.
Two quirks worth knowing: parents report dresses cut wide while trousers run slim, and from size 131 upward Zara stops publishing any measurements at all, height only. Past that point you are fitting blind, so keep receipts.
What parents report
The Mumsnet consensus in thread after thread: 'runs tiny, size up, sometimes twice'. The chart data narrows that down: it is the waist, mainly trousers, mainly from average builds up.
Zara kids measurements
| Size (cm) | Height (cm) | Chest (cm) | Waist (cm) |
|---|---|---|---|
| 92 | 86–92 | 51–53 | 50–51 |
| 98 | 92–98 | 55 | 52 |
| 104 | 98–104 | 56.5 | 53 |
| 110 | 104–110 | 58 | 54 |
| 116 | 110–116 | 59.5 | 55 |
| 122 | 116–122 | 62 | 56.5 |
| 128 | 122–128 | 64.5 | 58 |
Two quick answers
Does Zara kids run small?
Slim rather than small: waists sit at the low end of the big brands. Size up in trousers for average and broad builds.
Which Zara size for a 4-year-old?
By height: 104 for a child up to 104 cm. If trousers are involved and the child is not slim, take 110.
Source
Measurements from the manufacturer's own chart, checked August 10, 2026.