🍼 Adjusted Age Calculator
Calculate a premature baby’s adjusted (corrected) age by accounting for how many weeks early they were born, the way pediatricians typically do.
What is adjusted age
Adjusted age (also called corrected age) accounts for how early a baby was born when tracking their development. Because premature babies had less time to develop in the womb, comparing them to same-age full-term peers can be misleading, so pediatricians subtract the weeks of prematurity from the baby’s actual age.
How it’s calculated
Adjusted Age = Chronological Age − Weeks Born Early. For example, a baby who is 20 weeks old chronologically but was born 6 weeks early has an adjusted age of 14 weeks. Adjusted age is typically used for the first two years of life.
This tool is for general educational and planning purposes. Always discuss your baby’s individual growth and developmental milestones with a qualified pediatric healthcare professional.