Baby Clothing Size Calculator
The Baby Clothing Size Calculator suggests the right clothing size for your baby from their height (length). Because EU baby sizes are based directly on height in centimetres, you enter your baby's length and get the recommended size band plus the typical age range it covers. Sizes vary by brand, so it's usually smart to size up a little.
Formula
EU baby clothing size ≈ height in cm (rounded up to the next size band).
- EU baby clothing sizes correspond to a baby's height in centimetres, rounded up to the next standard band (50, 56, 62, 68, 74, 80...).
- Enter your baby's measured length; the calculator picks the smallest size band that fits and shows the age range it usually maps to.
- Input definitions: • Baby's height/length: your baby's current length in centimetres. • Baby's weight: optional, used only as a sanity check; sizing is driven by height.
- Age ranges are approximate — babies of the same age vary a lot in size, so always go by measurements.
- Brands differ: a '62' from one label may fit differently from another. When in doubt, choose the larger size.
- Sizing up slightly gives room to grow and means clothes last longer before they're outgrown.
Example Calculation
Inputs
- Baby's height/length: 62 cm
- Baby's weight (optional): 5 kg
Suppose you enter: Baby's height/length = 62, Baby's weight (optional) = 5. The calculator applies the formula (EU baby clothing size ≈ height in cm (rounded up to the next size band).) and shows all output values below. Change any input field to immediately see how the result changes.
Frequently asked questions
How are baby clothing sizes determined?
EU baby sizes are based on height in centimetres. A size '62', for example, fits a baby up to about 62 cm tall.
Should I size by age or height?
Always go by height (and weight) rather than age. Babies of the same age can differ by several centimetres, so measurements are more reliable.
Why does the tool suggest sizing up?
Babies grow quickly, so a slightly larger size lasts longer. Buying the exact current size often means the garment is outgrown within weeks.
Do brands size the same way?
Not exactly. Sizing varies between brands and countries, so treat the result as a starting point and check each brand's size chart.
How do I measure my baby's height?
Lay your baby flat, mark the top of the head and the bottom of the heel, and measure the distance between the marks.
What size for a newborn?
Newborns typically wear size 50–56 (up to about 56 cm). Larger newborns may move into 62 within the first few weeks.
Related calculators
Baby Age Calculator (Weeks & Months) The Baby Age Calculator tells you exactly how old your baby is in weeks and in months. Enter your baby's date of birth and today's date, and it returns the age in weeks (plus extra days), the number of completed calendar months, and the total days lived. It's handy for tracking milestones, vaccination schedules, and age-based clothing or feeding guides. Baby Height/Length Percentile Calculator The Baby Height/Length Percentile Calculator shows where your baby's length or height ranks against other children of the same age and sex. Enter the age, sex, and measured length, and it estimates the percentile using WHO growth references, along with the median height for that age. The 50th percentile is average; very low or very high values are worth raising with your pediatrician.