Exact Age Calculator — Years, Months and Days
Enter your birth date to calculate your exact age as of today.
'How old are you' usually gets a rounded answer. This calculator gives the full age — years, months and days — plus exactly how long until the next birthday.
Pure calendar math (years, months and calendar days) — unrelated to legal age for specific purposes, which may follow its own rules depending on the context (e.g. deadline counting).
Frequently asked questions
How is the exact age calculated?
From the difference between the birth date and today, counting whole years, whole months and the remaining days — not an approximation by dividing total days.
Does the tool account for leap years?
Yes. Births on February 29th and every date-difference calculation correctly account for leap years.
What's the point of knowing total days lived?
It's a common curiosity — some people celebrate milestones like day 10,000 or 20,000 of life. The tool calculates that total automatically.
Is my birth date saved anywhere?
No. The calculation happens entirely in your browser — the date you enter is never sent to or stored on any server.