Age Calculator
Calculate your exact age in years, months, and days. Find your zodiac sign, generation, weeks lived, and countdown to your next birthday.
Frequently Asked Questions
Common questions about age.
How to Calculate
Enter your birth date in any common format (MM/DD/YYYY, Month Day Year, etc.) and the calculator instantly computes your exact age. The calculation counts complete years since birth, then remaining months, then days. It automatically accounts for leap years and varying month lengths (28-31 days). The calculator also determines your Western zodiac sign based on your birth month, your Chinese zodiac animal and element based on birth year, and your generational cohort.
Formula & Method
Age in years = Current year - Birth year (adjusted if birthday hasn't occurred yet this year). Days lived = Sum of all days from birth date to current date, accounting for leap years. Zodiac sign = Birth date range (e.g., Capricorn: Dec 22 - Jan 19). Chinese zodiac = (Birth year - 4) mod 12, mapped to animal cycle.
Sources & References
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