Age Calculator
Calculate exact age in years, months, and days from any birth date.
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How to Use This Tool
- Enter your date of birth using the date picker or type it manually (YYYY-MM-DD format).
- Click 'Calculate' or press Enter to see your results instantly.
- View your exact age displayed in years, months, weeks, and days.
- Check the countdown to your next birthday and see what day of the week you were born on.
- Calculate the age for any other date by changing the reference date.
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Frequently Asked Questions
How is age calculated?
The age calculator determines the difference between your birth date and today's date (or a custom reference date). It calculates the exact number of years, months, and days, accounting for varying month lengths and leap years.
Can I calculate age for a past or future date?
Yes. You can change the reference date from today to any other date in the past or future. This is useful for calculating age at a specific point in time, such as for legal documents or planning purposes.
Does this calculator account for leap years?
Yes. The age calculator properly accounts for leap years (366-day years that occur every 4 years) and the varying number of days in each month when calculating your exact age.
How many days until my next birthday?
After entering your birth date, the tool automatically calculates and displays the number of days remaining until your next birthday, along with the day of the week it falls on.
How does the age calculator handle leap years?
Our age calculator accurately handles leap years by using the precise date difference algorithm. It accounts for varying month lengths and leap years to give you the exact age in years, months, and days.