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Enter your birth date to instantly calculate your exact age, traditional Chinese age, and total days alive, plus find your Chinese zodiac, horoscope, and lunar birthday.
The reference date defaults to today; you can freely switch it to view age at any moment.
Usage Tips
Exact Age
Born on 1990-01-15, calculated up to 2026-05-21.
Chinese Age (Xusui)
38
Traditional algorithm: 1 year old at birth, adds 1 year with each Chinese New Year.
Total Days Lived
13,275
Approx. 1896 Weeks
Total Months Lived
436
Born On (Day of Week)
Monday
Gregorian Date: 1990-01-15
Date
2027-01-15
Friday
Countdown
239
days away
126 days have passed since this birthday
Chinese Zodiac
Zodiac Sign
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When you need to accurately calculate your age, look up your lunar birthday, or find your Chinese zodiac and horoscope, manual conversions can be tedious and prone to errors. By simply entering a birth date (Gregorian or Lunar), this tool automatically handles complex calendar conversions and time difference calculations. It instantly outputs comprehensive personal time information, including your exact chronological age, traditional Chinese age (nominal age), total days since birth, corresponding lunar birthday, days until your next birthday, Chinese zodiac sign, and horoscope. Note that the traditional Chinese age is based on the Lunar New Year as the point of age increase, which differs from the chronological age calculated based on your Gregorian birthday.
Q: If I enter a lunar birthday, is the calculated chronological age accurate?
Yes. The tool first converts your entered lunar birthday into the corresponding Gregorian date, and then calculates your chronological age (the internationally recognized exact age) based on that Gregorian date. For example, if you enter "January 1, 1990 (Lunar)," the system will first find the corresponding Gregorian date (January 27, 1990) and then calculate the exact number of years from that date to today.
Q: Is the Chinese zodiac calculated based on the Lunar or Gregorian year?
It is based on the Lunar year. The division of Chinese zodiac signs strictly follows the traditional Chinese Lunar New Year (Spring Festival). As long as the birth date falls after a specific Lunar New Year, it belongs to the zodiac sign of that year; if it falls before the Spring Festival, it belongs to the zodiac sign of the previous year.
Please ensure the entered date is valid. The number of days until your next birthday is calculated in real-time based on your device's system time when you access the tool, so please keep your device time accurate. Lunar calculations involve complex rules such as leap months. This tool uses standard algorithms, but for very early historical dates (e.g., before 1900), the conversion results may have slight discrepancies compared to some historical records and are for reference only.
For scenarios requiring an exact legal or medical age, please be sure to use the "chronological age" result, which is the internationally accepted standard. This tool is highly suitable for quickly looking up comprehensive birthday information for yourself, family, or friends—such as checking the traditional Chinese age for an elder's birthday celebration, finding a child's zodiac and horoscope, or calculating the total days passed since a specific anniversary. A typical example: If you enter the Gregorian birthday "February 5, 2000," the result will show a chronological age of 24 (assuming the current year is 2024), a traditional Chinese age of 25 (if the Spring Festival of that year has passed), a zodiac sign of the Dragon (because February 5, 2000, was after that year's Spring Festival), and a horoscope of Aquarius.
