Age Calculator Online

Enter your birth date to instantly find out exactly how old you are — broken down into years, months, days, weeks, hours, and minutes.

What Is an Age Calculator?

An Age Calculator is a tool that determines your precise age based on your date of birth and today’s date. Rather than just telling you how many years old you are, this calculator gives a full breakdown of your age across multiple time units, along with a countdown to your next birthday and the ability to check your age on any future date.

How to Use This Calculator

1. Enter your birth date — use the date picker or manually type your day, month, and year.
2. Click “Calculate Age” — your age is displayed instantly across all time units.
3. Check your next birthday — see exactly how many days and weeks remain until your next birthday.
4. Calculate age on a future date — click “Show Age” on any specific date to see how old you will be at that point.
5. Reset — click the Reset button to clear all fields and start over.

What the Results Show You

Years, Months & Days Your exact age expressed in the most familiar format, accounting for leap years and varying month lengths.

Weeks Your total age expressed in complete weeks — a useful way to view age for newborns and young children.

Total Days The complete number of days you have lived from your birth date to today.

Total Hours & Minutes Your age taken all the way down to hours and minutes, updated based on today’s date and time.

Next Birthday Countdown A live countdown showing how many days and weeks remain until your next birthday, with a celebratory message when the day arrives.

Why Use This Age Calculator?

Complete Age Breakdown Most age tools only show years. This calculator displays your age in years, months, days, weeks, total days, total hours, and total minutes — all at once.

Future Age Lookup Want to know how old you’ll be on a specific date? Use the future date feature to calculate your age at any point ahead.

Flexible Date Input Enter your birth date using the calendar date picker or by typing the day, month, and year manually — whichever is more convenient.

Birthday Countdown Never lose track of how close your next birthday is. The calculator shows the exact number of days and weeks remaining.

PDF Export Ready Results are formatted for clean, single-page PDF export via your browser’s print menu — great for saving or sharing.

Free & Instant No sign-up, no fees. Just enter your birth date and get your results in seconds.

Common Use Cases

Finding your exact age for official documents, calculating age differences between two people, checking how old someone will be on a future date, tracking milestone birthdays, and determining age for medical or legal purposes.