Free & Instant
Age Calculator
Find your exact age in years, months, and days — plus total days lived and your next birthday countdown.
Age Calculator
Enter your date of birth to calculate your exact age.
Your Exact Age
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0Months
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About This Age Calculator
This tool calculates your exact age in years, months, and days based on your date of birth. It also shows your total age in days, weeks, and months, along with a countdown to your next birthday — useful for forms, eligibility checks, or just curiosity.
How Age Is Calculated
| Unit | Approx. Conversion |
|---|---|
| 1 Year | 365.25 days (accounts for leap years) |
| 1 Month | Varies (28–31 days) — calculated calendar-wise |
| Total Days | Exact day count between two dates |
Frequently Asked Questions
How is age calculated exactly?+
Age is calculated by finding the calendar difference between the date of birth and the target date, correctly accounting for varying month lengths and leap years.
Can I calculate age as of a future or past date?+
Yes. By default the calculator uses today's date, but you can change "Calculate Age As Of" to any date to find age at that point in time.