The size 0-3m in American Apparel is closest to the following:
Brand Label Weight (lbs) Height (inches)
American Apparel 0-3m 0 - 6 lbs 10 - 16 inches
BabyBoden 0-3 months 0 - 13 lbs 0 - 23.5 inches
Burt's Bees Baby (Target) preemie 0 - 7 lbs 0 - 18 inches
Cherokee (Target) preemie 0 - 5.5 lbs 0 - 17.5 inches
Circo (Target) preemie 5.5 lbs 17.5 inches
H&M 0-1 - 20 inches
Hanna Andersson newborn 0 - 9 lbs 0 - 20 inches
J.Crew/ Crewcuts Newborn 7 lbs 17 - 19 inches
Marimekko 3 months/ 62cm - 18 - 22 inches
Petit Bateau N/50 6 lbs 19.5 inches
The Children's Place 0-3 months 7 - 11 lbs -
Tucker + Tate (Nordstrom) PR 5 lbs 0 - 18 inches
Wal-Mart nb 5.5 - 7.5 lbs 17.5 - 21 inches
Zutano NB 4 - 8 lbs 0 - 18 inches
janie and jack Newborn 7 lbs 19 inches