Fitting & Sizing

Baby Size & Measurement Guide

Every baby grows at their own unique pace! Use our weight, height, and age benchmarks below to find the most comfortable fit.

Helpful Parent Tip:If your baby’s measurements fall between two sizes or on the higher end of a weight bracket, we always recommend choosing the larger size to allow room for diaper bulk and rapid baby growth.

Baby Clothing (Onesies, Rompers & Outfits)

Size / Age TagBaby WeightBaby HeightChest
Newborn (NB)2.5 – 3.8 kgUp to 50 cm38 cm / 15 in
0 – 3 Months3.8 – 5.5 kg50 – 60 cm41 cm / 16 in
3 – 6 Months5.5 – 7.5 kg60 – 68 cm44 cm / 17 in
6 – 12 Months7.5 – 10.0 kg68 – 76 cm47 cm / 18.5 in
1 – 2 Years10.0 – 12.5 kg76 – 86 cm50 cm / 19.5 in
2 – 3 Years12.5 – 15.0 kg86 – 96 cm53 cm / 21 in
3 – 4 Years15.0 – 18.0 kg96 – 104 cm56 cm / 22 in

Baby Booties, Socks & Beanie Caps

Age GroupBootie Insole LengthCap Head Circumference
0 – 3 Months9.0 – 10.0 cm34 – 38 cm
3 – 6 Months10.0 – 11.0 cm38 – 42 cm
6 – 12 Months11.0 – 12.5 cm42 – 46 cm

Unsure which size is right?

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