Preterm Corrected Age Calculator

Calculate your premature baby’s adjusted age for accurate developmental tracking.

Note: A full-term pregnancy is 40 weeks. Corrected age is typically used for babies born before 37 weeks gestation, up until they are 2 to 3 years old.
Select how many weeks and days pregnant the mother was at delivery.
Corrected Age
0 Months, 0 Days
0 Weeks, 0 Days
Actual Chronological Age (Unadjusted)
0 Months, 0 Days

*Use the Corrected Age when looking at developmental milestone charts.

Published On: April 2, 2026

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