Skills such as taking a first step, smiling for the first time, and waving “bye bye” are called developmental milestones. Children reach milestones in how they play, learn, speak, act, and move.

Click on the age of your child to see the milestones:

• 2 months
• 4 months
• 6 months
• 9 months
• 1 year
• 15 months
• 18 months
• 2 years
• 30 months
• 3 years
• 4 years
• 5 years
• Milestone checklists translated into other languages
• Print the milestone checklists (PDF) [4 MB, 24 Pages, 508] or click on your child’s age above to complete the checklist online.
• Download the Milestone Tracker mobile app
• Complete a checklist using the Digital Online Checklist