Developmental Milestones

A young girl with brown skin and curly brown hair is wearing a jean jacket and smiling at the camera while holding her hand up and waving.

The first smile. Their first step. Waving bye-bye. Even raising a hand to give a high-five. These are all part of what are called developmental milestones. Children reach milestones as they play, learn, speak, act, and move. Developmental milestones are things most children (75% or more) can do by a certain age.*

To see your child’s milestones, click on their age, listed below.

Vroom believes all parents want what’s best for their children. Vroom joined with scientists, researchers, and parents to take the science out of the lab and put it in the hands of caregivers. Vroom provides science-based tips and tools to inspire families to turn shared, everyday moments into Brain Building Moments®, and it doesn’t require more time, money, or extra stuff.

Click on your child’s age above to see Vroom Tips™ and Brainy Backgrounds™ to help your child grow and thrive!

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These milestones are not a substitute for a standardized, validated developmental screening tool. These developmental milestones show what most children (75% or more) can do by each age. Subject matter experts selected these milestones based on available data and expert consensus. Milestones information published here is based on the information and guidance provided by the Centers for Disease Control and Prevention (CDC). What is a Developmental Milestone? (n.d.). Centers for Disease Control and Prevention

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