What age is a size 10 (or 13, or 1) shoe?
Buying shoes as a present, or wondering if your child’s feet are “normal” for their age? Here is the usual age for each UK size.
Checked against UK retailer charts on 18 October 2026.
| UK size | Typical age (Shoe Zone) | Typical age (Marshmallow Kids) | Foot length (Next) |
|---|---|---|---|
| UK 4 | up to 1 year | – | 123 mm |
| UK 5 | 2 years | – | 130 mm |
| UK 6 | 2 years | 2 years | 138 mm |
| UK 7 | 3 years | 2 years | 146 mm |
| UK 8 | 3 years | 3 years | 153 mm |
| UK 9 | 4 years | 4 years | 161 mm |
| UK 10 | 4, 5 years | 5 years | 169 mm |
| UK 11 | 5, 6 years | 6 years | 176 mm |
| UK 12 | 6, 7 years | 7 years | 184 mm |
| UK 13 | 7 years | 8 years | 192 mm |
| UK 1 (after 13.5) | 8–9 years | 9 years | 200 mm |
| UK 2 (after 13.5) | 8–9 years | 10 years | 209 mm |
| UK 3 (after 13.5) | 10–11 years | 12 years | 217 mm |
The three sizes people ask about most
What age is a size 10 shoe?
Around 4 to 5. Shoe Zone lists 9–10 as the average at 4 and 10–11 at 5; Marshmallow Kids puts UK 10 at 5 years. Next sizes a 10 for a foot of about 169 mm.
What age is a size 13 shoe?
Around 7 to 8. Shoe Zone has 12–13 at age 7; Marshmallow Kids lists 12.5–13 at 8. A 13 fits a foot of about 192 mm.
What age is a size 1 shoe?
Around 8 to 9. Size 1 is the first size after 13.5, so it can feel like going "down". Shoe Zone lists 1–2 for ages 8–9 and Marshmallow Kids lists UK 1 at 9 years.
For the full chart and how to measure, see the kids’ shoe size chart.
Questions
What age is a size 10 shoe?
Usually around 4–5 years, based on Shoe Zone and Marshmallow Kids charts.
What age is a size 13 shoe?
Usually around 7–8 years.
What age is a size 1 shoe?
Usually around 8–9 years. It comes straight after size 13.5.
Where these numbers come from
- Shoe Zone kids' shoe size guide
- Marshmallow Kids shoe size chart
- Next children's shoe size conversion chart
Checked 18 October 2026. Brands change their charts, so always check the size guide of the shop you're buying from.