How to use the age calculator
Enter a date of birth and choose whether to calculate age right now or on a specific date and time. The result updates automatically, and live mode refreshes every second.
Free date tool
Age Calculator
Calculate exact age from a date of birth in years, months, days, total days, hours, minutes, and seconds.
- Exact age
- Live updates
- Time zone aware
- Total days lived
Current result
Exact age
Choose a birth date
0 years
- Total days
- 0
- Total hours
- 0
- Total minutes
- 0
- Total seconds
- 0
- Next birthday
- Choose a birth date
- Born on
- Choose a birth date
How exact age is calculated
The calculator compares the birth date with the selected date in your browser's local time zone, then breaks the difference into full years, months, and days.
Why time zone matters
Dates can change at different moments around the world. Using your local time zone keeps the result aligned with the date and time shown on your device.