Kids and baby shoe size chart
Pick a group to see a chart ordered by US size, each row with the matching sizes and foot length.
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Processing and privacy: The result is calculated inside your browser and your data is not sent to any server.
How to use it
- Enter group.
- The result appears straight away and updates as you edit.
- Copy the result, or copy a link that keeps the same values to share it.
How it is calculated
US child size = 3 × last length (in) − 11.75; Y sizes continue the same scale after 13.5C. UK child size = 3 × last length (in) − 12; UK adult size = 3 × last − 25. EU size = 1.5 × last length (cm), one Paris point being 2/3 cm. Last length = foot length + 2/3 in.
Example
Inputs: Group = Toddler (4.5C to 10C). Result: Sizes listed: 12; Shortest foot in the chart: 12.1 cm; Longest foot in the chart: 16.7 cm.
Limits and caveats
- The last is taken as 2/3 in (about 17 mm) longer than the foot; some European makers add only 13 mm.
- Brands differ by half a size to a full size, so check the brand chart before you buy.
- Group names are loose; foot length decides the size, not age.
Questions about this tool
What is the difference between 13.5C and 1Y?
1Y follows 13.5C on the same scale, so it is half a size larger.
Should I choose by age?
Ages vary a lot between children, so measure the foot and pick the row that matches it.
Why is the chart ordered by US size?
The US scale runs from baby to 7Y in even half-size steps, so it is easy to follow.