* The year here is 365 days and the month here is 30 days, that means your birthday may not mean you will be 0 days old.

**Don't worry I will not share your input.

A person's age can be counted differently in different cultures. This calculator is based on the most common age system. In this system, age increases on birthday. For example, the age of a person who has lived 3 years and 11 months is 3 and the age will change to 4 on their next birthday one month later. Most Western countries use this age system. In some cultures, age is expressed by counting years with or without including the current year. For example, a person is twenty years old is the same as a person in the twenty-first year of her life. In one of the traditional Chinese age systems, people are born at the age of 1 year and the age grows on the traditional Chinese New Year instead of the birthday. For example, if a baby was born just one day before Traditional Chinese New Year, 2 days later the baby will be 2 years old even though it is only 2 days old.

In some situations, the months and days result of this age calculator can be confusing, especially when the start date is the end of a month. For example, we all count February 20 to March 20 as one month. However, there are two ways to calculate the age from February 28, 2015 to March 31, 2015. If you think that February 28 to March 28 is a month, the result is one month and 3 days. If you think of both February 28 and March 31 as the end of the month, the result is one month. Both calculation results are reasonable. Similar situations exist for dates such as April 30 to May 31, May 30 to June 30, etc. The confusion comes from the unequal number of days in different months. In our calculation, we use the above method.

Go to main website