Have a question about your 5-month-old’s growth? Leave a comment below or talk to your pediatrician at your next well-baby visit (usually scheduled for 6 months). This post is for informational purposes only and does not constitute medical advice. Always consult your pediatrician about your specific child’s growth and health.

Let’s put your mind at ease. At 5 months old, your baby is transforming from a sleepy newborn into a social, rolling, laughing little person. And their weight gain is changing too.

If you’re a parent of a 5-month-old, you’ve probably found yourself staring at a baby scale more than once. Is she gaining enough? Is he too heavy? Is that chub suddenly slowing down?

During the first 3 months, babies gain about 150–200 grams (5–7 oz) per week. By 5 months, that slows to about 100–150 grams (3.5–5 oz) per week.