Baby Milestone Tracker

Baby Milestone Tracker: Development by Age

Enter your baby’s age to see the developmental milestones many babies reach around that stage. Every baby is different — this is a guide, not a checklist.

These are typical milestones for general guidance only — not medical or developmental advice. Babies develop at their own pace and reaching milestones a little earlier or later is usually normal. If you have any concerns about your child’s development, talk to your healthcare provider.
Support each stage: shop sensory toys, play mats & gyms, stacking toys & baby books. See our sleep calculator too.
More free tools:Due DateOvulationWeight GainSleep ScheduleFormulaDiaper SizeBaby Cost (CA)Name Generator

Baby development by age

From first smiles at 2 months to first steps around 12 months and two-word phrases by age 2, babies hit milestones across motor, language, social and cognitive areas. Ranges are wide and normal — use this as a friendly guide, and check with your provider if something worries you.