Example
26 years, 7 months, 17 days
Age Calculator
Calculate your exact age in years, months, days, weeks, and hours instantly in your browser. Free online age calculator from date of birth.
Enter the values below, then press Calculate (or press Enter). The calculator updates your results instantly. Try different values to see how your inputs change the outcome.
- Date of birth — enter a date.
- Age as of — enter a date.
- Review your results — the key output is highlighted, with supporting figures below.
Loading calculator…
Results
Exact age
| Detail | Value |
|---|---|
| Years | |
| Months | |
| Days | |
| Weeks | |
| Total days |
What is this calculator for?
Compute a precise age in years, months, and days from a date of birth.
How to Use This Calculator
Enter the values below, then press Calculate (or press Enter). The calculator updates your results instantly. Try different values to see how your inputs change the outcome.
- Date of birth — enter a date.
- Age as of — enter a date.
- Review your results — the key output is highlighted, with supporting figures below.
What You'll Need
- Date of birth
- a date · required
- Age as of
- a date · optional
About This Calculator
This age calculator works out the full years, then the remaining months and days between your date of birth and today (or a chosen "as of" date).
It also lists the total days, weeks, and hours for a complete picture. All computation happens locally in your browser.
Worked Examples
Frequently Asked Questions
How are leap years handled?
Exactly as the calendar works — the tool borrows days from the previous month and adds a day for leap February, so the figure matches real calendar aging.
Can I compute age on a specific past date?
Yes. Leave "age as of" blank to use today, or pick any date; the calculation runs relative to that date.