Enter your date of birth to instantly calculate your exact age in years, months, and days.
Whether you need your exact age for a form, want to know how many days until your next birthday, or are calculating age as of a specific date for eligibility purposes, manual date math is easy to get wrong. This tool handles leap years and varying month lengths automatically.
Everything is calculated instantly in your browser — no data is sent anywhere.
The tool calculates the full years, months, and remaining days between your date of birth and the reference date, accounting for varying month lengths and leap years.
Yes, change the "Calculate age as of" field to any date you want — useful for checking eligibility ages or age on a specific past event.
No. All calculations happen locally in your browser using JavaScript. Nothing is sent to or stored on a server.
It's a fun and sometimes useful stat — some eligibility or milestone calculations are based on total days rather than years.