Calculate your exact age down to the second and find out when your next birthday is
This age calculator computes your exact age from your date of birth to any specified date. It breaks down age into years, months, days, and even smaller units like hours, minutes, and seconds. Whether you need your precise age for a form, a milestone, or just curiosity, this tool gives you the most accurate result possible.
Enter your date of birth and optionally change the "as of" date (defaults to today). Click Calculate to see your age broken down into every time unit. You'll also see when your next birthday falls and your zodiac sign.
Your age is calculated by finding the difference between your date of birth and the "as of" date. The calculator accounts for leap years and varying month lengths to give you the precise number of years, months, and days you have lived.
Your zodiac sign is determined by your birth date. The Western zodiac divides the year into 12 signs, each covering a specific date range. For example, March 21–April 19 is Aries, and April 20–May 20 is Taurus.