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Baby shoe size calculator

Convert your child’s foot length into common shoe sizes.

Units
Nothing is stored or sent anywhere.

How to measure your child’s foot

1
Stand on paper
Have your child stand with their full weight on a sheet of paper, heel against a wall.
2
Mark the longest toe
Mark the tip of the longest toe — it isn’t always the big toe.
3
Measure both feet
Measure from the wall to the mark. Use the longer foot if they differ.

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Good to know

Fit and growing room

Why growing room matters

Children’s feet grow quickly. A little space in front of the toes helps shoes stay comfortable for longer.

How much room?

A common guide is around 10–15 mm between the longest toe and the end of the shoe. We use 12 mm.

Check often

Toddlers’ feet can grow a size every few months. Many parents re-measure every 6–8 weeks.

FAQ

Questions parents ask

Should I measure in the evening?

Feet can be slightly larger later in the day, so measuring in the afternoon or evening can give a more accurate result.

Do first walkers need shoes indoors?

Many children learn to walk barefoot at home. Shoes are mainly for protection outdoors.

Is my data stored?

No. Everything is calculated in your browser.