Step by step
- Enter your date of birth in the Date of birth field.
- Click the Age on field and select the past or future date you need.
- Read the exact age in years, months, and days shown below.
- Check the total months, weeks, and days lived for that same date range.
At a glance
| Situation | What to enter | Result shown |
|---|---|---|
| Age on a past date | Birth date and past target date | Exact age on that historical day |
| Age for a future deadline | Birth date and application cutoff date | Age you will be on that deadline |
| Birth date after target date | Later birth date than target date | Message noting birth date is after chosen date |
Related questions
How do I calculate age from date to date?
Enter the earlier date as Date of birth and the later date in the Age on field. The tool computes the exact span in years, months, and days between the two dates.
Can I check how old I was on a past date?
Yes. Set the Age on field to any past date after your birth date, and the calculator shows your exact age on that day.
What happens if the chosen date is before my birth date?
The calculator displays a notice that the date of birth is after the chosen date instead of a negative age.
More questions: age calculator
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Open the full age calculator →
Updated November 14, 2026.