Age Calculator
Free online age calculator. Pick your date of birth to get your exact age in years, the number of days you have been alive, your weekday of birth, days until your next birthday, and your Western and Chinese zodiac signs — all calculated locally. LifeRuns locally
Use this tool
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Age (years)
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Days alive
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Next birthday in
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Born on a
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Western zodiac
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Chinese zodiac
How to use
- Choose your date of birth.
- Your age, days alive and zodiac signs appear immediately.
- It also shows how many days remain until your next birthday.
Frequently asked questions
How is the Western zodiac sign decided?
It is based on the date (not the year) using standard tropical-zodiac date ranges, e.g. Aries runs from March 21 to April 19.
How is the Chinese zodiac decided?
The Chinese zodiac follows a 12-year cycle; this tool approximates it from the Gregorian year ((year-4) mod 12). Anyone born close to Lunar New Year should check that year's exact date.
Why count days alive?
It is simply the whole-day count from your date of birth to today — a fun way to see how long you have been around.