International conversions Nov 9, 2026 4 min read
Kids' Clothing Size Conversion: Age vs Height
Kids' clothing labels combine age (5T, 6, 7) AND height/weight. Age alone misleads — kids same age can differ 5cm in height. Use height as the more reliable signal.
The Chart
| Age | US Size | Height | EU Size (cm) | UK Size (yrs) |
|---|---|---|---|---|
| 3 | 3T | 37-39" | 98 | 3 |
| 4 | 4T | 39-41" | 104 | 4 |
| 5 | 5 | 41-44" | 110 | 5 |
| 6 | 6 | 44-46" | 116 | 6 |
| 7 | 7 | 46-48" | 122 | 7 |
| 8 | 8 | 48-50" | 128 | 8 |
| 9 | 8-10 | 50-52" | 134 | 9 |
| 10 | 10 | 52-54" | 140 | 10 |
| 12 | 12 | 54-58" | 146-152 | 11-12 |
| 14 | 14 | 58-62" | 158-164 | 13-14 |
FAQs
EU sizing in cm?
EU kids' clothing sized by height in cm. EU 110 = fits 110cm tall child. Most precise system because it removes age guesswork.
How do I pick if my kid is between heights?
Size up. Kids grow 2-4 inches per year, so the next size lasts longer. Exception: fitted items (school uniforms, swimwear) where current fit matters.
Need this on your store?
Tailor Size Guide ships pre-built size charts for Shopify.