Age Calculator
Enter your date of birth to find your exact age in years, months and days, total days and weeks, and how long until your next birthday.
Detailed Age Calculation
The tool shows your age in years, months and days, plus the total number of days and weeks since you were born. The calculation is based on your date of birth.
Age Tracking for Baby and Child Development
For babies, age is usually given in months or weeks. Doctor check-ups and vaccination schedules use this figure, and you can get it by entering the date of birth.
How Long Until Your Birthday?
The result shows the date of your next birthday and how many days are left until it. To find the day of the week you were born on, use the Day of Birth Calculator.
Korean Age and Age in Different Cultures
Some cultures count age differently (for example, a baby is counted as 1 year old at birth). This tool uses the international 'attained age' method, so you are not counted as a given age until you have fully reached it.
How to Use
Inputs
The only input is your birth date. Age is always calculated as of today. To measure the time to another date, use the Date Difference Calculator.
Example Scenario
What a person born on 15 March 1990 sees when using the tool on 22 April 2026:
| Parameter | Value |
|---|---|
| Birth date | 15 March 1990 |
| Date of calculation | 22 April 2026 |
| Exact age | 36 years, 1 month, 7 days |
| Total days | 13,187 days |
| Total weeks | 1,883 weeks |
| Next birthday | 15 March 2027 (327 days) |