Struggling with what size to get? Use the table below to roughly gauge children's shoe sizes to their age, or convert between UK, US and EU shoe sizes.

We believe in finding the perfect fit for your feet, that's why our sizing is slightly more specific than other sock sites. 

(Swipe left on mobile to view more columns of the table)

 Socks:

Roy's Boys Size Range Age (approx) UK US EU
UK 3-5.5 (Child's) 1-2 yrs 3-5.5 4-6.5 19-22
UK 6-8.5 (Child's) 2-3 yrs 6-8.5 7-9.5 23-26
UK 9-12 (Child's) 3-6 yrs 9-12 10-13 27-31
UK 12.5-3.5 (Child's) 7-10+ yrs 12.5-3.5 13.5-4.5 31-36
UK 4-7.5 Adult 4-7.5 5-8.5 37-41.5
UK 8-11 Adult 8-11 9-12 43-46
UK 11.5-14 Adult 11.5-14 12.5-15 46.5-49

 

Pyjamas: (swipe for more columns on mobile)

Age Height (inches) Height (cm) Chest (inches) Chest (cm) Waist (inches) Waist (cm)
18-24 Months 34-36 86-92 20.75 53 20.5 52
2-3 Years 36-38 92-98 21.5 55 20.75 53
3-4 Years 38-41 98-104 21.5 55 20.75 53
4-5 Years 41-43 104-110 23 59 21.5 55
5-6 Years 43-46 110-116 24 60 22.5 57
7-8 Years 48-51 122-128 26 67 23.5 60
9-10 Years 53-55 134-140 29 73 25 64
11-12 Years 57-60 146-152 31 79 27 68