Clothing (age is a guideline only)
Early Baby 2.3kg 5lbs
Tiny Baby 3.4kg 7.5lbs 50cms
Newborn 4.5kg 10lbs 56cms
0-3 months 6.5kg 14.5lbs 62cms
3-6 months 8kg 17.5lbs 68cms
6-9 months 9kg 19.8lbs 74cms
9-12 months 10.5kg 23lbs 80cms
12-18 months 12kg 25.5lbs 86cms
18-24 months 15kg 30lbs 92cms

Shoes/Socks (age is a guideline only)

Age: 0-3 months = UK shoes size Newborn 0-00

Age: 0-6 months = UK shoe size Baby 0-0

Age: 0-12 months = UK 0-2.5, European 15-18

Age: 12-24 months = UK3-5.5, European 19-22

Size 1 European 17
Size 2 European 18
Size 3 European 19
Size 4 European 20.5
Size 5 European 21.5
Size 6 European 23
Size 7 European 24
Size 8 European 25.5
Size 9 European 27
Size 10 European 28
Size 11 European 29
Size 12 European 30.5
Size 13 European 32
Adult 1 European 33
Adult 2 European 34.5
Adult 3 European 35.5
Adult 4 European 37
Adult 5 European 38

Hats (age and head measurement are a guideline only):
Please see note below on how to measure your child's  head.

Newborn: up to approx 36 cm 

0 to 6 months: up to approx 43 cm 

6 to 12 months: up to approx 46 cm

12 months to 3 years: up to approx 50 cm

3–5 years: up to approx 53 cm

6–8 years: up to approx 56 cm

To measure a child's head for a hat, measure the head about half an inch (1.25 cm) above the eyebrows where the hat will rest. Be certain that the tape measure is straight, not twisted, and fits comfortably, not too tight. Alternatively, you can use a piece of string to measure the head, and then measure the length of the string with a ruler.

Some hats are one size fits all, especially woollen hats because the fibres can stretch.