Find your exact age in years, months, days, hours & seconds. Get your Chinese zodiac animal sign, Korean traditional age, age difference between two people, your generation (Gen Z, Millennial, Gen X…), Western zodiac sun sign, Vedic moon sign (rashi) & birthday countdown.
Enter your date of birth to calculate your exact age
Find the age gap between two people — couples, siblings, colleagues
Enter two dates of birth to compare ages
Age is calculated by counting complete years, then remaining months, then remaining days between your date of birth and the reference date. Leap years (366 days) are automatically handled. You also get your total age expressed in days, weeks, hours and seconds.
Your Western sun sign is derived using astronomical solar longitude (Schlyter algorithm) for cusp-date precision. Your Vedic moon sign (rashi) uses lunar orbital mechanics with Lahiri ayanamsa correction. Enter your birth time for the most accurate moon sign, as the Moon moves ~0.55° per hour.
The calculator shows exactly how many days remain until your next birthday. It also generates fun age milestones — like how many times your heart has beaten, how many breaths you've taken, and notable events that happened in your birth year.
In Western countries, age increases on each birthday. In Korea and parts of East Asia, the traditional system counts you as 1 at birth and adds a year every January 1st. Japan historically used a similar system. This calculator uses the internationally standard Western method.
Common questions about age calculation, zodiac signs and birthday countdowns
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