Child Shoe Size Calculator
Find your child's shoe size in US, UK, and EU from foot length in inches or cm.
Covers toddler through youth sizes with a width guide for wide feet.
Your data stays in your browser. We do not store, collect, or transmit any information you enter.
Recommended Shoe Size
Child shoe sizing is based primarily on foot length. Age is used as a general guide but foot length is more accurate.
Approximate child shoe sizes by foot length:
| Foot Length | US Size | UK Size | EU Size | Age Range |
|---|---|---|---|---|
| 3.5 in / 8.9 cm | 0C | 0 | 15 | 0–3 months |
| 4.0 in / 10.2 cm | 2C | 1 | 17 | 3–6 months |
| 4.5 in / 11.4 cm | 4C | 3 | 19 | 9–12 months |
| 5.0 in / 12.7 cm | 5C | 4.5 | 21 | 12–18 months |
| 5.5 in / 14.0 cm | 7C | 6 | 23 | 2 years |
| 6.5 in / 16.5 cm | 9C | 8 | 26 | 3–4 years |
| 7.0 in / 17.8 cm | 11C | 10 | 28 | 4–5 years |
| 7.5 in / 19.1 cm | 12C | 11 | 30 | 5–6 years |
| 8.0 in / 20.3 cm | 13C | 12.5 | 31 | 6–7 years |
| 8.5 in / 21.6 cm | 1Y | 13 | 33 | 7–8 years |
| 9.0 in / 22.9 cm | 2Y | 1 | 34 | 8–9 years |
| 9.5 in / 24.1 cm | 3.5Y | 2.5 | 36 | 9–10 years |
Tips:
- Measure feet in the afternoon when they are largest
- Leave 1/2 inch (1.3 cm) of room in the toe
- Children’s feet grow 1–2 sizes per year
How we build and check this calculator
This calculator runs entirely in your browser, so the numbers you enter stay on your device. The math behind it is written by hand and tested against worked examples and standard references before the page goes live.
SuperGlobalCalculator is independently built and maintained. See how we build and verify our calculators.