Enter a date of birth to get an exact age breakdown — years, months, days, and a countdown to the next birthday.
A precise age isn't just a whole number of years — the exact months and days matter for things like eligibility cutoffs, so the calculator breaks it down fully rather than rounding.
Yes, use the "Calculate age as of" field to set any reference date, not just today — useful for checking eligibility rules tied to a specific cutoff date.
Yes, the calculation is based on actual calendar dates, so leap years are automatically handled correctly.
No, the entire calculation happens in your browser using JavaScript — nothing you enter is transmitted anywhere.