To correct, subtract the number of weeks born early from the chronological age. It's typically used until about 2 years, after which most children have caught up. Using corrected age avoids mistaking normal prematurity for a delay.
Glossary
Corrected age
Corrected (adjusted) age is a premature baby's age counted from their original due date rather than their birth date, used to set fair expectations for growth and milestones.
Try the tool: Baby Growth Percentile Calculator · Baby Milestone Timeline
Related terms
General information, not medical advice. For concerns about your child, talk with your doctor or child-health nurse.