Baby age and development
Calculate chronological age and, for premature babies, corrected age — with the milestones that usually show up around this stage, without treating any of them as a rigid deadline.
Every baby has their own pace. A milestone that hasn't appeared yet doesn't mean a delay — talk to your pediatrician if something worries you.
Chronological age: full days and months since birth. Corrected age (for babies born before 37 weeks): subtracts from the chronological age the weeks that were missing for the gestational age to reach 40 weeks, according to the Sociedade Brasileira de Pediatria (Brazilian Society of Pediatrics) — most experts use this correction during the first 2 years of life, with no definitive consensus on exactly how long. Source: SBP — Seguimento Ambulatorial do Prematuro de Risco (follow-up of at-risk premature babies, in Portuguese). The data stays in this browser only and isn't saved.
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