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Age Calculator
Enter your date of birth — your exact age updates instantly.
Formula
age = calendar difference from birth date to today (years / months / days)
Fun facts
10,000 days ≈ 27.4 years. 1 billion seconds ≈ 31.7 years — worth celebrating!
FAQ
Why do month lengths make this tricky?
Months have 28–31 days, so the year/month/day breakdown borrows days from the previous month — the calculator handles that automatically.
Is my age different in another time zone?
By up to one day, yes. This calculator uses your device's local date.