Australian baby clothes use a size number as well as an age range, and it can be confusing at first: the more zeros, the smaller the size. Here’s how it works, and how to choose.
The size numbers
| Label | Age | Height (cm) | Weight (kg) |
|---|---|---|---|
| 0000 | Newborn | up to 56 | up to 4.5 |
| 000 | 0–3m | 56–62 | 4.5–6 |
| 00 | 3–6m | 62–68 | 6–8 |
| 0 | 6–12m | 68–76 | 8–10 |
| 1 | 12–18m | 76–83 | 10–11.5 |
| 2 | 18–24m | 83–90 | 11.5–13 |
| 3 | 2–3y | 90–98 | 13–15 |
Brands vary a little, so treat this as a guide. Some brands also make a smaller premature size for babies born early.
Height first, then weight
Babies grow at their own pace, so age is only a starting point. Measure from the top of the head to the heel with your baby lying on their back and legs gently straightened, then compare with the chart. Weight is a useful second check.
Why sizing up usually wins
Babies outgrow clothes fast, and many newborns skip the 0000 size altogether or wear it for only a few weeks. A slightly bigger size gives room for nappies and growth, and cuffs can be folded back in the meantime.
Newborn to 12–18m · A$33.95View
Buying as a gift?
Choose 000 or 00 (0–3 or 3–6 months) rather than newborn: parents usually receive plenty of tiny sizes, and a slightly bigger piece gets more wear. Think about the season the baby will be wearing it in, too.
Need a hand? See our size guide or email us your baby’s height and we’ll help.