How to calculate height and weight for an 18-month-old?
⚡ Short answer: For an 18-month-old, average height and weight differ between boys and girls, but what really matters is steady progress on your baby's own curve — missing one month of growth doesn't worry me, but no growth between two check-ups or losing weight means seeing your pediatrician.
Anonymous
18 aylık bebek annesi · Health
Height and weight calculation for an 18-month-old? My mother-in-law says one thing, I read another.
Maiyko AI ADVISOR
The real reply from the in-app AI advisor
For an 18-month-old, here are the average values:
Girls: about 10.2 kg, about 81 cm
Boys: about 10.9 kg, about 83 cm
But these are just averages — a healthy baby can be slightly below or above these numbers. What really matters is steady progress on their own growth curve. One slow month doesn't mean you should worry; but if there's no growth between two check-ups or actual weight loss, definitely ask your pediatrician.
Your reading and your mother-in-law's knowledge might differ because old growth charts aren't the same as current WHO (World Health Organization) percentiles. You're probably both right — just using different sources. The most reliable thing is your baby's own pediatrician's growth chart they've been tracking.
⚕️ Health note: This answer is for general information only; it is not medical advice. Every baby is different — for decisions about your baby's health, consult your pediatrician.
This answer is general — yours can be personal 🐦
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