Your Exact Age
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Years
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Months
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Weeks
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Total Days
Next birthday in
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Frequently Asked Questions
Age is calculated by counting the years, months, and days from your birthdate to today. The calculator accounts for varying month lengths and leap years. For example, someone born on January 15, 2000 is exactly 25 years, 2 months, and 16 days old on March 31, 2025.
People born on February 29 (leap day) officially celebrate on February 28 or March 1 in non-leap years, depending on local convention. Our calculator uses March 1 as the equivalent birthday in non-leap years for age calculation purposes.