Age Calculator
Calculate your exact age in years, months, days. See total days lived and days until next birthday.
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What is this tool?
Age calculator computes your exact age in years, months, and days from your date of birth to the current date. It also shows your age in weeks, days, hours, and minutes. Additionally, it can calculate the time remaining until your next birthday and the exact time between any two dates.
How to use
- 1
Enter birth date
Select your date of birth from the date picker.
- 2
View results
See your exact age in years, months, days, and more.
- 3
View results
Review the output.
Frequently Asked Questions
How many days are in a typical year?
A common year has 365 days, and a leap year has 366 days. Leap years occur every 4 years, except for years divisible by 100 but not by 400. The next leap year is 2028.
Does the calculator account for leap years?
Yes. The calculator uses exact calendar date arithmetic, which correctly handles leap years, varying month lengths, and daylight saving time transitions.
Does the result change on my birthday?
Yes, on your birthday you move up one year. The tool calculates based on the exact date you enter.
How do I calculate age on a specific date?
To find your age on a specific date, subtract your birth date from the target date. The calculator shows your age as of today by default. Some age calculators allow you to set a custom target date. For example, if you were born on March 15, 1990, on January 1, 2025 you would be 34 years, 9 months, and 17 days old.
How many days until my next birthday?
Count the days from today to your next birthday. If your birthday has already passed this year, count to next year's birthday. For example, if today is August 3 and your birthday is March 15, your next birthday is approximately 225 days away. Most age calculators display this information automatically.