The Mimou Babywear Blog

Welcome to the Mimou Blog! Find helpful tips, practical advice, and inspiration for life with your little one—from babywear and everyday essentials to the little things that make parenting special.

Mother holding her baby in a Mimou embroidered denim flutter romper — US vs UK vs EU baby clothes size conversion guide

The Mimou Babywear Blog

Baby Clothes Sizes Explained: US vs UK vs EU Conversion Guide

Is a US “3M” the same as a UK “0–3 months”? What does an EU “62” mean? Baby sizes are labelled differently across the US, UK and EU and don’t line up neatly. Here’s how the three systems compare — and the one rule that cuts through all of it.