Calculate Baby AgeBaby milestones by month
What's typical at each stage of the first year — motor, cognitive, language, and social-emotional development, plus feeding and sleep. Ranges are approximate; every baby develops at their own pace.
The first month is mostly reflexes and recognition — your newborn is adjusting to the world outside the womb, and most of what looks like a skill is still an automatic reflex rather than a deliberate action.
Month two is when a lot of parents get their first real social payoff — the earliest smiles that are clearly aimed at you, not just gas.
By 3 months a baby is noticeably more "present" — stronger head control, more purposeful hand movements, and a wider range of sounds and expressions.
Month four often brings the first real laugh and a big jump in hand-eye coordination — reaching and grabbing start to look intentional.
Rolling both ways, steadier sitting with support, and a lot more curiosity about the wider world define month five for many babies.
Half a year in, and many babies are sitting with little help, starting solids, and babbling in longer chains — a genuine turning point month.
Sitting gets steadier, hands get busier, and separation from a favorite caregiver starts to matter more at 7 months.
Cruising along furniture, a more precise finger grasp, and stronger stranger awareness are typical hallmarks of month eight.
Confident crawling, a first meaningful word for some babies, and clear favorites among people and toys mark month nine.
Standing gets steadier, communication gets more deliberate, and personality really starts to show at 10 months.
The month right before the first birthday often brings the earliest independent steps and the first couple of real words.
The first birthday is more of a milestone for parents than a hard cutoff for babies — most 1-year skills arrive across a wide window either side of this date.