Kids' Shoe & Clothing Size Calculator

Finds a child's shoe size in Korean, Japanese, US, UK and EU sizing from foot length, and clothing sizes in Korean, US, UK and EU sizing from height. Use it when you buy children's shoes or clothes from another country or as a gift.

How to use

1. On the "Shoes" tab, enter the "Foot length" in mm, cm or inch. Measure both feet and use the longer one.
2. To leave room to grow, choose +5 mm or +10 mm under "Growing room".
3. Read the size for each country; the US size also shows Toddler, Little Kid or Big Kid.
4. On the "Clothing" tab, enter the "Height" to see clothing sizes and the "Height range chart".

How it works

• Korean (mm) and Japanese (cm) shoe sizes are the foot length rounded up to 5 mm. US, UK and EU are the first size in Nike's kids' shoe chart that fits, up to 7Y.
• Clothing follows the Uniqlo Korea, Carter's (US) and Next (UK) size charts; the EU size is the height in cm or the next size up. The UK chart covers 2 to 16 years only.
• Sizes vary by brand and product, so the results are for reference. Check the brand's own size chart before you buy.

Questions and answers

How do I measure my child's foot?

Have the child stand on paper with the heel against a wall, mark the tip of the longest toe and measure from the wall to the mark. Feet swell a little during the day, so measure in the afternoon or evening.

What shoe size is a 150 mm foot?

The Korean size is 150. With +10 mm of growing room the sizes are found for 160 mm, and the US, UK and EU sizes appear as well.

Should I choose clothes by age or by height?

Height is a better guide, because children of the same age differ in height. On a boundary, the larger size is the usual choice.

What do C and Y mean in US kids' shoe sizes?

C sizes (1C to 13.5C) are for younger children, and Y sizes (1Y to 7Y) are for older children. 1Y comes after 13.5C.