| Age guide | Size | Typical height |
|---|---|---|
| Newborn | AU 0000 | Up to 56 cm |
| 0–3 months | AU 000 | Up to 62 cm |
| 3–6 months | AU 00 | Up to 68 cm |
| 6–12 months | AU 0 | Up to 76 cm |
| 12–18 months | AU 1 | Up to 84 cm |
| 18–24 months | AU 2 | Up to 92 cm |
| 3 years | AU 3 | Up to 100 cm |
| 4 years | AU 4 | Up to 108 cm |
| 5 years | AU 5 | Up to 115 cm |
| 6 years | AU 6 | Up to 121 cm |
| 7–8 years | AU 8 | Up to 134 cm |
| 9–10 years | AU 10 | Up to 145 cm |
| 11–12 years | AU 12 | Up to 150 cm |
How to read our sizes
A label such as AU 0 · 6–9 months (73 cm) combines the size code, intended age range and garment maker’s height guide. Garment and body measurements are displayed in centimetres.
Measure for the product
Children grow at different rates and fits can vary between styles. Use age as a starting point, then choose according to the centimetre measurement shown on the individual product whenever the two guides differ.
Sleepwear and safety
Children’s nightwear requires specific labelling in Australia. Regulated categories remain unavailable until all required product information and compliance records are verified.