Age Calculator
Enter a date of birth to find an exact age in years, months, days, and total hours — useful for anything from form-filling to curiosity.
How it works
- Enter the date of birth.
- The tool calculates the exact age in years, months, and days as of today.
- It also shows the day of the week the person was born and the next birthday.
Frequently asked questions
Why does my age in days seem to change slightly around my birthday?
Leap years mean not every year is exactly 365 days, so day-and-hour counts can shift depending on how many leap years fall inside the span being measured.
Can I calculate someone else's age, not just my own?
Yes — enter any date of birth, past or present, to get that person's exact age as of today.