How to use the age calculator
Enter your date of birth and leave the second date empty if you want to calculate your age today.
- 1Select your date of birth.
- 2If you want to check another date, select it in the second field.
- 3Press «Calculate age» to see the result.
Age guide
How can I find out exactly how old I am?
If someone asks how old you are, you'll probably say 15, 20, 32... whatever the number is. And that's perfectly fine. but... nope, it is not your age. Your exact age is not just that whole number, but we understand that it is the simplest way to answer. This calculator helps you calculate your exact age, kind of like when someone asked your mom: Maria, how old is your son? And she answered: he is 1 year and 7 months old. Well, this calculator goes a little further: you give it your date of birth and the date up to which you want to calculate your age, and it tells you how many years, months, weeks, and days you have been alive. And since we are already exaggerating, we also give you a countdown with the days, hours, minutes, and seconds left until your next birthday. Necessary? I don't know. Did we want to make it? Yep, hehe.
Why subtracting the years is not enough
If you were born on December 20, 2000, and today is December 19, 2025, you are 24 years old. Yes, I know 2025 - 2000 gives you 25, buuuut you have not had your birthday yet. You are one day short. That is why simply subtracting the years does not always work.
Does the calculator take leap years into account?
Yes. The calculator takes the real number of days in each month into account. What does that mean? It knows that February does not have the same number of days as March, for example, and that when the year is a leap year our beloved February 29 appears... the one that makes things awkward every 4 years.
What each result means
Years, months, and days
Your calendar age, split into complete years, complete months, and remaining days.
Total days
The full number of days between the two dates.
Total weeks
The duration split into complete weeks and the days left over.
Next birthday
Next birthday: It shows you the date, the age you will turn, and a countdown with the days, hours, minutes, and seconds left until it arrives.
When can it be useful to know your exact age?
Well, knowing that you are 25, 30, or 40 is normally more than enough, but there are moments when you need to know your exact age. For example, for some paperwork, to know how old you were when something happened, or simply because you want to know what day of the week your next birthday falls on.
- Check your exact age for paperwork, an event, or a trip.
- Know exactly how many years, months, and days old you were on a past date.
- Compare two dates and find out how many days or weeks there are between them.
- See what day of the week your next birthday will fall on.
Calculation examples
On your birthday
If you were born on March 15, 1990, you turn exactly 34 on March 15, 2024. This is the easy case: same day, same month, only the year changed.
Between birthdays
Now let's make it a little harder. If you were born on March 15, 1990, and you calculate your age on August 20, 2024, you are 34 years, 5 months, and 5 days old.
Before your birthday
If you were born on October 8, 1995, and you calculate your age on October 7, 2026, you are still 30 years old. Tomorrow you will be 31.
Private calculation in your browser
The dates are processed in your browser and are not sent to a calculation server.
Questions about the age calculator
How do I calculate my exact age today?
Easy: enter your date of birth and leave the end date empty. The calculator will automatically use today's date and tell you your exact age.
Does the calculator take leap years into account?
Yes. The calculator takes the real number of days in each month into account. What does that mean? It knows that February does not have the same number of days as March, for example, and that a leap year brings along our beloved February 29. :D
Is my date of birth saved?
No, the whole calculation happens directly in your browser, so your date of birth is not saved. Your data stays with you.
This calculator is for general reference. If you need your age for a legal or official procedure, check the specific requirements of the country or organization asking for it.