Baby Milestone Tracker

Track your baby's developmental milestones based on CDC guidelines. From first smiles to first steps.

What are developmental milestones?

Developmental milestones are skills most children can do by a certain age. They include how children play, learn, speak, behave, and move. The CDC tracks milestones across four key areas: motor skills, language, cognitive development, and social and emotional skills.

Looking for one milestone in particular? Our milestone guides cover individual milestones in depth, from first smiles to first words.

How to use this tracker

Enter your baby's birthdate to see age-appropriate milestones.
Check off milestones as your baby achieves them.
Explore activities to support your baby's development in each area.
View the full timeline to see what's coming next.

Frequently asked questions

What are developmental milestones?

Developmental milestones are behaviors or physical skills seen in infants and children as they grow and develop. Rolling over, crawling, walking, and talking are all considered milestones. They give a general idea of the changes to expect, but every child develops at their own pace.

When should I be concerned about my baby's development?

While every child develops at their own pace, talk to your pediatrician if your child consistently misses milestones across multiple areas or seems to lose skills they once had. The CDC recommends developmental screening at 9, 18, and 30 months.

Are these milestones based on medical guidelines?

Yes. The milestones in this tracker are based on the CDC (Centers for Disease Control and Prevention) developmental milestone guidelines, which reflect the latest research on child development.

Can premature babies reach milestones at the same time?

Premature babies often reach milestones later than full-term babies. Doctors use a 'corrected age' for premature babies, subtracting the number of weeks born early from their actual age, to assess development during the first two years.

When to talk to your doctor

Every child develops at their own pace, and this tool is meant for guidance, not diagnosis. However, if your child consistently misses milestones or loses skills they previously had, consult your pediatrician. Early intervention can make a big difference.