The sizes provided below are measurements of the clothing items (unless mentioned), which are based on a standard guide for baby sizes.
If you are purchasing for a baby that is already born, do note that this size guide only acts as a standard guidance as babies grow at a different rate.
Footwear
Length from heel to toe
0-3 months: 3.5 inches
3-6 months: 4 inches
6-12 months: 4.5 inches
12-18 months: 5 inches
Headwear
Average head circumference
0-3 months: 12-13 inches
3-6 months: 14-15 inches
6-12 months: 15.5-16.5 inches
1-2 years: 16-18 inches
3-10 years: 19-20 inches
Adult: 21-22 inches
Hat height
0-3 months: 4.5 inches
3-6 months: 5 inches
Diaper Cover
Waist
0-3 months: 13-16 inches
Top of waist to crotch bottom
0-3 months: 6 inches
Tutu Dress
Chest (Circumference)
3-6 months: 18 inches
6-12 months: 19 inches
12-18 months: 20 inches
Length from shoulder
3-6 months: 16 inches
6-12 months: 17 inches
12-18 months: 18 inches
Cardigan
Chest (Circumference)
3-6 months: 21 inches
6-12 months: 22 inches
12-18 months: 23 inches
Length from shoulder
3-6 months: 12 inches
6-12 months: 13 inches
12-18 months: 14 inches
Sleeve length
3-6 months: 6 inches
6-12 months: 6.75 inches
12-18 months: 7.5 inches