Age Calculator
Enter a date of birth to instantly calculate the exact age in years, months, and days as of today.
About the Age Calculator
This tool calculates your exact age in years, months, and days based on your date of birth — down to the day. It's useful for filling out official forms, checking eligibility requirements, or simply satisfying curiosity about exactly how long you've been alive.
How to use it
1. Enter your date of birth.
2. The tool instantly calculates your age as of today.
3. See the result broken down into years, months, and days.
Why exact age matters
Many official processes — passport applications, school admissions, retirement planning, insurance eligibility, and legal documents — require your precise age, not just your birth year. Calculating this by hand is easy to get wrong once leap years and varying month lengths are involved, which is where this tool helps.
Frequently asked questions
Does this account for leap years?
Yes, the calculation accounts for leap years automatically for an accurate day count.
Is my birth date stored anywhere?
No. The calculation happens entirely in your browser — nothing is sent to a server or saved.
Can I calculate age as of a future or past date instead of today?
This version calculates age as of today's date. For age on a specific date, simply adjust your input date accordingly.