The Age Calculator accurately computes the time span between two dates, presenting the result in years, months, weeks, days, hours, minutes, and seconds.
Age Calculator
Find out your exact age in years, months, and days
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This calculator uses the most common age system, where age increases on birthdays—standard in most Western countries. For example, someone 3 years and 11 months old is considered 3 and turns 4 on their next birthday.
Some cultures count age differently. In traditional Chinese systems, a baby is 1 at birth and turns a year older at the Chinese New Year. So, a baby born a day before the New Year would be 2 just two days later.
Note: Month and day results can vary based on date differences. For example, Feb 28 to Mar 31 can be counted as 1 month or 1 month and 3 days. This calculator uses the method where a month equals a full span from the same day in each month.