Baby clothes size by months
Turns a baby's age into the cm size printed on baby clothes such as 62, 68 and 74.
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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 baby age.
- 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
Under 1 month = 56, 1 to under 3 = 62, 3 to under 6 = 68, 6 to under 9 = 74, 9 to under 12 = 80, 12 to under 18 = 86, 18 to under 24 = 92. The number is the maximum baby length in cm.
Example
Inputs: Baby age = 4 months. Result: EU size: 68 cm; UK size (age): 3-6 months; US size: 3-6 months.
Limits and caveats
- The chart lines up with WHO median baby lengths, and your baby may be longer or shorter.
- US month sizes vary by brand, and some also use weight.
Questions about this tool
What does size 68 on baby clothes mean?
It fits a length up to about 68 cm, usually ages 3 to 6 months.
Should I buy the current size or the next one?
Babies grow fast, so many parents buy the next size for clothes meant for a few weeks later.
What size is a newborn?
Usually 56, and 50 for small or premature babies.