
Unfortunately there isn't a simple answer
Frustratingly the answer to the question 'what size are tiny baby clothes?' is not simple. It depends on which manufacturer made the baby clothing and which retailer is selling tiny baby size clothes.Unfortunately there isn't a common sizing policy amongst baby clothing companies and across countries. So we've seen clothes advertised as 'Tiny Baby' size in a variety of sizes: 3lb-5lb, 4lb-6lb, 4lb-7lb, 5lb-7lb, Up to 4lb, 5lb, 6lb, and 7lb, plus size 44 and 38 (European baby clothing sizing measurement in CM).
What about the Tiny Baby size clothes we sell?
Finding premature and tiny baby clothing in the UK is so difficult that we source most of our clothes from Canada, USA, Western Europe, Scandinavia and Eastern Europe.But each brand names their items differently: Premature Baby, Early Baby or Tiny Baby size, or use the European sizing which is the length of baby in centimeters. And one item labelled 'Premature' can be the same size as another brand's 'Tiny Baby' size or another manufacturer's size 38 or size 44. What's more, we've found clothes labelled as Premature that are bigger than a Tiny Baby sized item and Tiny Baby clothing that is closer to Newborn size.
Here's our Tiny Baby size clothes

Sometimes we ignore what's on the sizing label to make it easier for you!
Shop our range of premature and tiny baby clothes