Age Calculator
Find your exact age from your date of birth — years, months, and days — plus total weeks, days, hours, minutes, the day of the week you were born, and a countdown to your next birthday.
When were you born?
Ages are calculated from calendar dates (midnight to midnight) using your device’s local time. Dates shown in MM/DD/YYYY format.
Your birth date is processed in your browser only. It is never uploaded, stored, or shared.
No account, no email, no tracking — just pick a date and get your answer.
Unlimited age calculations with no limits and no paywall.
How to use
- 1Pick your date of birth
Use the date picker to select the day you were born.
- 2Calculate
Tap the button — your exact age is computed instantly from today’s date.
- 3Explore the breakdown
See your age in years, months, and days, plus totals in weeks, days, hours, and minutes, the weekday you were born on, and your next birthday countdown.
Features
Proper calendar math with month-boundary borrowing — not a rough division by 365.
Your age expressed as total weeks, days, hours, and minutes alive.
Days remaining until your next birthday, with the date in MM/DD/YYYY format.
Find out whether you arrived on a Monday, a Friday, or any other day of the week.
February 29 birthdays are handled correctly — celebrated on February 28 in non-leap years.
Everything runs locally in your browser. Your birth date never leaves your device.