Age Calculator
Calculate your exact age in years, months, and days. See total days and weeks lived, your next birthday countdown, the day of the week you were born, and your Chinese and Western zodiac signs. Instant, runs in your browser.
Frequently Asked Questions
How is the exact age calculated?▼
The calculator computes the difference between today's date and your birthdate accounting for varying month lengths and leap years. It gives exact years, months, and remaining days — not just a rounded number. For example, if you were born on March 15 and today is May 3, you are X years, 1 month, and 18 days old.
How accurate is the next birthday countdown?▼
The countdown shows the exact number of days remaining until your next birthday in the current calendar year. If your birthday has already passed this year, it counts to next year. If today is your birthday, it shows a celebration message.
How is the Chinese zodiac sign determined?▼
This calculator uses a simplified Gregorian year-based calculation for the Chinese zodiac. The traditional Chinese zodiac follows the lunar calendar, so people born in January or February may technically belong to the previous year's sign. For precise lunar-based results, consult a dedicated lunar calendar tool.
What is the Western (tropical) zodiac?▼
The Western zodiac divides the year into 12 signs based on the position of the Sun relative to constellations. Each sign covers approximately 30 days. Your sign is determined by your month and day of birth, regardless of the year. This calculator uses the standard tropical zodiac date ranges.
Can I calculate someone else's age?▼
Yes — enter any birthdate and the calculator instantly computes the exact age for that date. It works for any historical date after the Gregorian calendar was adopted and before today.
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