Age (date of birth)
Calculate age in years, months and days from date of birth.
Results
Enter data and click Calculate.
Frequently asked questions
- What does Age (date of birth) do?
- It computes a date difference, age or other time-based result from the form.
- What rule does it use?
- Calendar difference or the rule described under “How the results are calculated”.
- What inputs do I need?
- Dates or periods in the format shown on the fields (usually YYYY-MM-DD).
- Is the result exact?
- Yes within the Gregorian calendar; time zones apply only if a field says so.