Date-only utility
Calculate elapsed age in days, weeks and months
Choose a birth date and an “as of” date. The calculator uses calendar dates only and returns straightforward elapsed-time values.
Baby age calculator
Enter both dates to calculate elapsed age.
What the result means
Days are the exact difference between the selected calendar dates. Weeks are completed seven-day periods. Months are completed calendar months, and the formatted line shows elapsed years, months and days.
This utility does not calculate corrected or gestational age, developmental stages, vaccination timing, percentiles or medical milestones.
Use the result with your own records
Hugfolio can organize the care entries you choose to save. The calculator itself does not write to the app or change your baby profile.