Age Calculator

Result

Age:
25 years 6 months 18 days
or 306 months 18 days
or 1333 weeks 2 days
or 9,333 days
or 223,992 hours
or 13,439,520 minutes
or 806,371,200 seconds

June 1987
SMTWTFS
 123456
78910111213
14151617181920
21222324252627
282930    
 ... 
December 2012
SMTWTFS
      1
2345678
9101112131415
16171819202122
23242526272829
3031     

Date of Birth
Age at the Date of
 

RelatedDate Calculator | Time Calculator


The age of a person can be counted differently in different cultures. This calculator is based on the most common age system. In this system, age grows at the birthday. For example, the age of a person that has lived for 3 years and 11 months is 3 and the age will turn to 4 at his/her 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, one person who is twenty years old is the same as one person who is in the twenty-first year of his/her life. In one of the traditional Chinese age systems, people are born at age 1 and the age grows up at the Traditional Chinese New Year instead of birthday. For example, if one baby was born just one day before the Traditional Chinese New Year, 2 days later, the baby will be at age 2 even though he/she is only 2 days old.

In some situations, the months and days result of this age calculator may be confusing, especially when the starting date is the end of a month. For example, we all count Feb. 20 to March 20 to be one month. However, there are two ways to calculate the age from Feb. 28, 2015 to Mar. 31, 2015. If thinking Feb. 28 to Mar. 28 as one month, then the result is one month and 3 days. If thinking both Feb. 28 and Mar. 31 as the end of the month, then the result is one month. Both calculation results are reasonable. Similar situations exist for dates like Apr. 30 to May 31, May 30 to June 30, etc. The confusion comes from the uneven number of days in different months. In our calculation, we used the former method.