Baby feet grow in bursts, and no two are the same shape. The safest way to buy is to measure the foot, add growing room, and check the number against the chart below. It takes two minutes and saves a return.
How to measure
- Put a sheet of paper on a hard floor against a wall.
- Stand your baby on it with the heel touching the wall. Standing matters, feet spread when they take weight.
- Mark the paper at the tip of the longest toe. That is not always the big toe.
- Measure from the wall to the mark in centimetres. Do both feet and use the longer one.
Add growing room
Our shoes are built with roughly 1 cm of space beyond the longest toe. That is the sweet spot: enough room to grow into over about three months, not so much that the foot slides forward on every step. Find your measured foot length in the first column and read across.
Size chart
| Foot length | Inside length | Inches | US | EU | UK | Typical age |
|---|---|---|---|---|---|---|
| 10.0 cm | 11.0 cm | 4.33" | 3T | 18 | 2 | 0-6 months |
| 10.5 cm | 11.5 cm | 4.53" | 4T | 19 | 3 | 6-12 months |
| 11.0 cm | 12.0 cm | 4.72" | 4.5T | 19.5 | 3.5 | 6-12 months |
| 11.5 cm | 12.5 cm | 4.92" | 5T | 20 | 4 | 12-18 months |
| 12.0 cm | 13.0 cm | 5.12" | 5.5T | 21 | 4.5 | 12-18 months |
| 12.5 cm | 13.5 cm | 5.31" | 6T | 21.5 | 5 | 18-24 months |
| 13.0 cm | 14.0 cm | 5.51" | 6.5T | 22 | 5.5 | 18-24 months |
| 13.5 cm | 14.5 cm | 5.71" | 7T | 22.5 | 6 | 2-3 years |
| 14.0 cm | 15.0 cm | 5.91" | 7.5T | 23 | 6.5 | 2-3 years |
| 14.5 cm | 15.5 cm | 6.10" | 8T | 24 | 7 | 2-3 years |
| 15.0 cm | 16.0 cm | 6.30" | 8.5T | 25 | 7.5 | 3-4 years |
| 15.5 cm | 16.5 cm | 6.50" | 9T | 26 | 8 | 3-4 years |
| 16.0 cm | 17.0 cm | 6.69" | 9.5T | 26.5 | 8.5 | 4-5 years |
| 16.5 cm | 17.5 cm | 6.89" | 10T | 27 | 9 | 4-5 years |
Ages are a guide only. Two babies of the same age can be three sizes apart, so trust the measurement over the age.
Between two sizes?
Go up. A shoe that is slightly large is a shoe your baby grows into. A shoe that is slightly small changes how they walk, and they will tell you about it.
When to check again
Under 15 months, measure every two months. Between 15 months and three years, every three months. Feet at this age can gain a full size in eight weeks.
Signs the shoe is too small
- Red marks or indentations on the foot after taking the shoe off
- Toes curling under, or the longest toe pressed flat against the front
- Your baby pulling the shoes off more than usual
- Less than a fingertip of space in front of the longest toe when standing
Still not sure?
Message us with the measurement in centimetres and we will tell you which size to order. If it turns out wrong, exchanges are free within 30 days.