Calculate your exact age in years, months, and days from any birth date. See total days, weeks, next birthday, zodiac sign, and Chinese zodiac. Free and instant.
An age calculator determines the exact time elapsed between a birth date and today, or any other reference date, expressed in years, months, and days. It can also show total days lived, weeks, time until the next birthday, and related details like zodiac sign.
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Exact Age
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Age Calculation
Calculating your exact age seems simple but has nuances. The standard method counts complete anniversaries ā for example, if you were born on March 15, you only turn a new year on March 15. Days and months between anniversaries are counted separately.
Our calculator gives your precise age in years, months, and days, as well as total days, weeks, and months from your birth ā useful for medical records, insurance calculations, and legal age requirements.
Zodiac
Western astrology divides the year into 12 signs based on the Sun's position. Each sign has characteristic traits, though their scientific validity is not established. The sign is determined by the month and day of birth, regardless of the year.
Chinese Zodiac
The Chinese zodiac follows a 12-year cycle, with each year symbolized by an animal. Unlike the Western zodiac, the Chinese zodiac is determined solely by the birth year. The cycle includes: Rat, Ox, Tiger, Rabbit, Dragon, Snake, Horse, Goat, Monkey, Rooster, Dog, and Pig.
Applications
Medical documentation
Exact age in days is important for pediatric norms and medical calculations.
Insurance calculations
Exact age milestones affect insurance policy terms and eligibility.
Legal age requirements
Coming of age, retirement age, and legal deadlines require a precise date.
Birthday planning
See exactly how many days remain until your next birthday.
Visa and immigration
Many visa applications require exact age in years and months at the time of application.
School enrollment
Cutoff dates for school enrollment vary by country. Knowing the exact age helps determine eligibility.
The calculator counts complete calendar years from your birth date to the target date, then adds remaining months and days. For example, if you were born on March 15 and today is April 10, your age would show the full years completed on your last birthday, plus 0 months and 26 days.
Calendar age (years, months, days) uses complete calendar units ā you turn 1 year older only on your birthday anniversary. Age in total days is the exact count of days elapsed since birth, which is more precise and useful for medical or legal purposes.
The Western zodiac is based on the Sun's position at birth, determined by month and day (not year). Each of the 12 signs covers a specific date range ā for example, Aries covers March 21 to April 19.
The Chinese zodiac follows a 12-year cycle. Each year is associated with an animal: Rat, Ox, Tiger, Rabbit, Dragon, Snake, Horse, Goat, Monkey, Rooster, Dog, and Pig. The animal is determined solely by your birth year.
Yes ā change the 'Age as of' date to any future date to see how old you will be on that day. This is useful for planning milestones like retirement, anniversaries, or legal age requirements.