Age Calculator

The Age Calculator helps you find the exact time difference between two dates. It shows your age in years, months, weeks, days, hours, minutes, and even seconds.

People around the world count age in different ways. The calculator you’re using follows the most common system, where your age increases on your birthday.
For example, if someone has lived for 3 years and 11 months, we’d say they’re 3 years old and they will turn 4 on their next birthday. This is the method used in most Western countries.

But not every culture does it this way. In some traditions, people include the current year when counting age. That means someone who’s 20 years old could also be described as being in their 21st year of life.
In the traditional Chinese system, for example, a baby is already considered 1 year old at birth, and everyone’s age goes up together on the Chinese New Year, not on their birthday. So if a baby is born one day before the Chinese New Year, just two days later (after the New Year), that baby would already be 2 years old, even though they’ve only been alive for two days!

Sometimes, figuring out the exact months and days can be a bit tricky especially when dates fall at the end of the month.
For instance, from February 20 to March 20 is clearly one month.
But if we look at February 28, 2022, to March 31, 2022, there are two ways to see it:

If we say February 28 to March 28 is one month, then the total is 1 month and 3 days.

But if we treat February 28 and March 31 as both being month-end dates, then it’s simply 1 month.

Both ways are technically correct the confusion just happens because months don’t all have the same number of days.
For consistency, this calculator uses the first method, which counts from the same day number each month.