Find your exact age in years, months, and days — instantly and free.
How to Use the Age Calculator
1. Select your date of birth using the date picker.
2. By default, age is calculated as of today — but you can change the second date to calculate age as of any date.
3. Click "Calculate Age" to see your exact age in years, months, and days, plus extra stats like total days lived and your next birthday countdown.
Why Use This Age Calculator?
This calculator gives a precise age breakdown by accounting for leap years and varying month lengths, something simple year-subtraction can get wrong. It runs entirely in your browser, is completely free, and works on any device.
Frequently Asked Questions
How is age calculated from date of birth?
Age is calculated by finding the difference between your date of birth and the chosen date, accounting for years, months, and days including leap years.
Can I calculate age as of a future or past date?
Yes, you can select any reference date and the calculator will show your age as of that specific date.
Is this age calculator accurate?
Yes, the calculator accounts for varying month lengths and leap years to give a precise age in years, months, and days.
Is this tool free to use?
Yes, this age calculator is completely free with no signup or limits.