The size 10Y in Petit Bateau is closest to the following:
Brand Label Weight (lbs) Height (inches)
American Apparel 8 years 49 - 52 lbs 48 - 50 inches
Burt's Bees Baby (Target) 7 53 lbs 48 - 51.5 inches
Cherokee (Target) 7 48.5 - 54 lbs 47 - 48.5 inches
Circo (Target) 7 48.5 - 54 lbs 47 - 48.5 inches
H&M 7-8 years - 50 inches
Hanna Andersson 120cm 45 - 55 lbs 46 - 50 inches
Hatley 8 - 53 inches
J.Crew/ Crewcuts 6 46.5 - 54.5 lbs 45 - 49 inches
LLBean 10-12/M - 53 - 58 inches
Lands End 7/L 49 - 54 lbs 47 - 49 inches
Marimekko 10 yrs/140cm - 55 inches
MiniBoden 10y - 55 inches
Petit Bateau 10Y 48 - 53 lbs 54.5 inches
Ralph Lauren 7 49 - 55 lbs 49 - 51.5 inches
janie and jack 6 44 - 52 lbs 52 - 62 inches
tea 6/M 46 - 51 lbs 45 - 48 inches