Enter the date of birth
Pick the day you were born. The age is worked out for today in your own time zone.
Free Age Calculator
Enter a date of birth to see the exact age in years, months and days, the total days lived and the countdown to the next birthday. Switch modes to count the days between two dates or to add and subtract days, weeks, months and years.
Open Age Calculator →How to calculate your age
Read the exact age
See years, months and days, the total days lived and how long until your next birthday.
Try other dates
Pick another “age on” day, count days between two dates or add days to a date.
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Age Calculator FAQ
How is my exact age calculated?
The calculator counts the whole years since your date of birth, then the whole months, then the days that remain. For example, from 15 May 1990 to 11 October 2026 is 36 years, 4 months and 26 days.
What if I was born on 29 February?
In years without a 29 February, your birthday is counted on 28 February. Some countries use 1 March for legal purposes; the age in years is the same on every other day.
Does my time zone matter?
Only for what “today” is: the calculator uses the date on your device. All the date maths works on calendar days, so it never shifts by a day because of time zones or daylight saving time.
How do I count the days between two dates?
Choose Days between dates and pick the two dates. You get years, months and days, the total number of days and weeks, and the number of weekdays. Tick Count the end day too if both days should count.
Are holidays removed from the weekday count?
No. Weekdays are Monday to Friday. Public holidays differ by country, so subtract them yourself if you need working days.
Can I add months to a date?
Yes. Choose Add or subtract and enter years, months, weeks or days. If the day doesn't exist in the new month, the last day of that month is used.
Is it free?
Yes. No sign-up and no limits. It works in your browser and remembers your last dates on your device.
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