Date Time
Age Calculator
Calculate age in years, months, and days from a birth date.
Free to use — no sign-up or login.
Result
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This free Age Calculator covers Calculate age in years, months, and days from a birth date.
Enter the Age Calculator fields, then read the output. Date Time calculators on this site keep the formula visible beside the form, with no account required.
Using the Age Calculator
Calculate age in years, months, and days from a birth date. Fill the labeled fields on the Age Calculator and read the result. The formula stays in How it works rather than being repeated here.
FAQ
How do I use the Age Calculator?
Enter the labeled values on the Age Calculator and read the output. Count full years, then remaining months and days.
What formula does the Age Calculator use?
The Age Calculator uses the identity in How it works. In words: Count full years, then remaining months and days.