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Convert Baby Clothes Size Chart: American, Australian & Europe

Updated on March 5, 2012
WryLilt profile image

Susannah Birch is a certified birth doula, journalist, and owner of Trimester Talk, a leading pregnancy website.

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When preparing for a baby, there are many things to take into consideration. There are all types of furniture and small items to buy ranging from changing tables through to shampoo and towels.

Of course, clothes are a big investment - babies grow so fast they often change sizes every few weeks or months.

Of course if you are having a baby or buying a baby shower gift for someone, it's important that you choose the correct size for baby - otherwise it might not fit at all.

In Australia, America and Europe, the sizes used for baby clothing are all completely different. Below you'll find a basic size chart for babies up to the age of one, to help you convert sizes between the countries.

Since many people have either overseas relatives or simply prefer to save money by buying online, it's important to be able to choose the right size for your child.

Remember that the guide below is only a basic outline and you should check measurements before purchasing.

Australian Size
US Size
British & European Size
Preemie & Micro
Below 56
0-3 Months
3-6 Months
6-9 Months
9-12 Months

European sizes are based on the length of the baby (for instance, size 56 is made for a baby that is approximately 56cm long.) Measuring your baby's length can be a good guide.

Tips for Buying the Right Size

When choosing the right baby clothing size as a gift or while pregnant, it can be confusing to pick the right size for someone that isn't even born yet. Here are some tips:

  • If in doubt, buy a size larger.
  • If big babies run in the family, go for sizes for 3 months and over.
  • Don't buy sizes below 0 months, or 56 or size 00000, since these are made for premature babies and won't fit a full term newborn.
  • Always have a few spare clothes in the next size up.
  • Remember that different brands can differ in the actual size so don't assume that all clothes with the same size will fit the same way.


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    • anusujith profile image

      Anoop Aravind A 5 years ago from Nilambur, Kerala, India

      good hub

    • WryLilt profile image

      Susannah Birch 6 years ago from Toowoomba, Australia

      Sandy, as noted, it's a good idea to buy the larger sizes if big babies run in the family. And having had babies over 8 pounds, I can say that 0000 clothes do fit, although often only for a few weeks. Also, sizes do vary between brands. Bonds is known for having smaller sizes in particular.

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      sandy 6 years ago

      That is not right at all. Ive had 5 large babies the smallest was just under 8lb biggest was 10 pounds none of them were small or premature at birth. I had size 000 for all but the 10lb baby he had to go into size 0 at birth I am talking basic newborn baby clothes size like bonds jumpsuits singlets. It's a good idea cheek the label it will also give height and weight size. for me I don't know yet what size my grand baby will be unborn but want to have something ready is what brought me here lucky for me Ive been around a bit and not taken your word for it. miss leading and miss guiding to first time mothers.

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      Kate 7 years ago

      This is not correct. In the US Newborn sizes are smaller than 0-3 months, not the same size.

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      prem2pram 7 years ago

      When buying online be sure to check the websites size guide as many online baby stores will offer clothes by either measurement or by weight, if you're in any doubt about sizing it is worth emailing the website owner for clarification.