Kids' CM to UK Shoe Size Chart
| CM | EU | US | UK |
|---|---|---|---|
| 15 | 24 | 8 | 7 |
| 15.5 | 25 | 8.5 | 7.5 |
| 16 | 26 | 9 | 8 |
| 16.5 | 27 | 9.5 | 8.5 |
| 17 | 28 | 10 | 9 |
| 17.5 | 28.5 | 10.5 | 9.5 |
| 18 | 29 | 11 | 10 |
| 18.5 | 30 | 11.5 | 10.5 |
| 19 | 31 | 12 | 11 |
| 19.5 | 32 | 12.5 | 11.5 |
| 20 | 33 | 13 | 12 |
| 20.5 | 33.5 | 13.5 | 12.5 |
| 21 | 34 | 1 | 13 |
| 21.5 | 35 | 1.5 | 13.5 |
| 22 | 35.5 | 2 | 1 |
| 22.5 | 36 | 2.5 | 1.5 |
| 23 | 37 | 3 | 2 |
| 23.5 | 37.5 | 3.5 | 2.5 |
| 24 | 38 | 4 | 3 |
Foot length against the British children's scale
The children's UK scale runs up to UK 13.5 and then restarts at UK 1 as the foot keeps growing, so no single offset links the two columns. Around that rollover the CM side keeps climbing steadily, which is why 22 cm sits where the UK number has just reset.
The British children's scale restarts at 1 partway up, so foot length in millimetres is the number that stays honest as the child grows. Measuring also catches the mislabelling problem: a large check of children's shoes found most measured shorter inside than the printed size, so the safe move is to fit the inner length, not the UK number. Remeasure every few months, because young feet add length quickly and a shoe that fit at the last check is often already tight.
Common questions
Why measure in centimetres for UK kids' sizes?
The UK scale resets at 1 and labels often run short, so foot length in millimetres is the steady figure to size from.
Is it worth buying ahead a size or two?
No. Too much room makes a child trip; allow a little growing space and remeasure every few months instead.
Kids' shoe size charts · Kids shoe fit check · How to measure foot length · Printable foot measuring sheet
Sources
Growth rates and mislabelled children's shoes: kinderfuesse.com; help.orf.at.
Foot-length sizing: ISO 9407 Mondopoint; JIS S 5037.
These sizes come from your foot length in centimeters. Learn how Mondopoint sizing works.