Baby shoe sizing is chaos — one maker says "2–4 months", another says "EU 19", another "size 1". So every BabyHouse shoe uses one universal scale, S0 to S5, defined by the only thing that matters: how long your baby's foot is, in inches.
| BabyHouse size | Age guide | Foot length | Foot (cm) | Insole length | EU approx. |
|---|
Stand your baby on a piece of paper (or hold the foot flat on it). Mark the back of the heel and the tip of the longest toe, then measure between the marks in inches. Measure both feet — go with the longer one.
Each size's insole is about 0.4" longer than the foot it fits, so there's wiggle room without slipping. If your measurement sits at the top of a size, go up one — little feet grow about half a size every 2–3 months.
Fit not perfect? We swap sizes free, worldwide. Age ranges are a guide only — feet, like babies, do their own thing.
