Different cultures reckon people's ages differently. This calculator is based on the most popular age system. In this system, an individual's age increases on their birthday. For example, a person who has lived for three years and eleven months is three years old, and their age will increase to four on their next birthday, which is one month later. Most Western countries utilize this age system.

In some cultures, age is expressed by counting years, either including or excluding the current year. For example, a twenty-year-old person is the same age as someone in their twenty-first year of existence. In one of the ancient Chinese age systems, people are born at the age of one, and their age grows at the ancient Chinese New Year rather than their birthday. For example, if a kid is born just one day before the Traditional Chinese New Year, they will be two years old two days later, although they are only two days old at the time.

In rare cases, the months and day results of this age calculator can be perplexing, especially if the starting date is near the end of a month. For example, we consider February 20 to March 20 to be one month. However, there are two ways to determine the age between February 28, 2022 and March 31, 2022. If we take February 28 to March 28 to be one month, the total is one month and three days. If we count both February 28 and March 31 as the end of the month, the result is one month. Both calculations are reasonable. There are similar circumstances for dates such as April 30 to May 31, May 30 to June 30, and so on. The misconception stems from the uneven number of days in different months. In our calculations, we employ the former method.

Calculate the age of a person, location, or object. The age calculator uses a date of birth to determine age in years, months, and days. You can also use this calculator to determine the amount of time between two dates.

The age calculator calculates the time spread between years, months, and days, as well as total days.

This age calculator calculates age using two approaches that are similar yet slightly different. One technique is to specify age in years, months, and days, as well as months and days. The alternative approach is used to compute age precisely in terms of total days.

When computing age at the day level, keep in mind that not all months have the same number of days. A leap year has 366 days, as opposed to 365 days in a regular year.

When you compute age in terms of years, this calculator returns the result in standard terms. For example, a teenager may state that he is 15 years old rather than 12 average years + 3 leap years. This age calculator makes the same assumption: despite the fact that years might vary in length, we treat regular and leap years as equal.

The same holds for months. If a baby is seven months old, her parents would not say she is four months 31 days long, two months 30 days long, and one month 28 days long. We typically generalize across months of varying lengths and count them all the same as general months.

The age calculator calculates age using generally used terminology, referring to all years and months as equal. When calculating days, the calculator employs a function to determine the exact number of days between dates.

If you want to know how many days you've been alive, you must account for the extra days in leap years. You should also know the total number of months, which is 31 days, 30 days, and 28 days.

The age calculator employs a function that determines how many leap years occur in a particular period and the exact number of days in a partial year. For example, if you were born on March 5 and today is June 7, the calculator determines the precise number of days between those dates.

Your age in total number of days is computed as follows:

The number of years, x, having 365 days equals 365x +

The number of years, y, with 366 days equals 366y +

The number of days remaining in the partial year.

This calculator assumes the start date is day 0 and starts counting one full day after that. For example, entering the dates 03/15/2022 and 3/18/2022 into the calculator yields a total age of 3 days. The first day is the 16th, the second day is the 17th, and the third day is the 18th. The fifteenth is not included in the count of days.

Date Formats.

The age calculator allows you to enter single-digit months and days. You do not need to pad them with a leading zero. However, you must enter the four-digit year.

US date formatting can employ a forward slash, a period, or a dash.

mm/dd/yyyy

mm.dd.yyyy

mm-dd-yyyy

European date formatting can employ a forward slash, a period, or a dash.

Date format: dd/mm/yyyy (dd.mm.yyyy) or dd-mm-yyyy

International data formatting according to ISO 8601 uses only a dash (-):

yyyy-mm-dd

Today's date is based on Greenwich Mean Time (GMT).