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Milestones, age by age
A checklist based on the CDC's “Learn the Signs. Act Early.” milestones, from 2 months to 5 years. Mark each milestone and keep the date your baby reached it.
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Twelve ages, from 2 months to 5 years
Each age has its own list, taken from the CDC's milestone checklists.
- 2 months
- 4 months
- 6 months
- 9 months
- 12 months
- 15 months
- 18 months
- 2 years
- 30 months
- 3 years
- 4 years
- 5 years
Four areas
Milestones are grouped the same way the CDC groups them.
- Social and emotional
- For example: “Smiles or laughs when you play peek-a-boo”
- Language and communication
- For example: “Lifts arms up to be picked up”
- Cognitive
- For example: “Puts something in a container, like a block in a cup”
- Movement and physical
- For example: “Pulls up to stand”
How it works
Find the age
Milestones are listed by age, from 2 months to 5 years, in plain words taken from the CDC checklists.
Mark what you have seen
Tick a milestone when it happens. Each one belongs to one of the four areas the CDC uses.
Keep the date
BabyZone records the date of each milestone, so you have a record of when it happened.
Milestones is a record, not an assessment. BabyZone does not score or screen development. If you have questions about your child's development, talk with your child's doctor.
Keep every milestone in one place
Milestones comes with BabyZone Premium, together with growth charts, medications, statistics, and family sharing.
Get BabyZone for iPhonePremium: $4.99/month or $39.99/year. Cancel anytime.
Source: Centers for Disease Control and Prevention (CDC), Learn the Signs. Act Early. milestone checklists (2022). Use of CDC materials does not imply endorsement by the CDC or the U.S. Government.