Age Calculator: How Old Am I

How old am I, exactly? Age Calculator answers from any date of birth in a second — your precise age in years, months and days, the total in weeks, hours, minutes and seconds, the countdown to your next birthday, your zodiac sign and the age difference between any two people. Enter a Date of Birth and everything appears at once.

It is just as useful for the people around you: a baby's age in weeks and months, a parent's exact age for a form, the gap between two friends, or how long it has been since a date that matters to you.

WHY YOU'LL LOVE AGE CALCULATOR

• Exact age: years, months and days from any Date of Birth, with a Total section that counts the weeks, days, hours, minutes and seconds you have lived.
• Age as of any date: see how old someone was, or will be, on the day you choose — not only today.
• Next Birthday with a Countdown in days, plus a Future Birthdays list with the dates of the coming years.
• Weekday and Leap year: the day of the week a person was born on, and whether that year was a leap year.
• Zodiac sign and Chinese zodiac: the Western sign, the Chinese animal with its element, and the Chinese age.
• Difference: enter two dates of birth and get the exact gap in years, months and days, each person's age, and the totals.
• Saved: keep people and dates with a name, find them with Search, and reopen a result in one tap.
• Displayed sections: show only the blocks you need — Total, Weekday, Leap year, Next Birthday, Countdown, Future Birthdays, Zodiac sign or Chinese zodiac.
• Copy and Share: send any result to family or friends as text.
• Works offline for every calculation, with light and dark themes and 73 languages.

HOW IT WORKS

1. Open Age and enter a Date of Birth — yours or anyone else's. Change Age as of if you want the age on another day.
2. Read the result: the exact age, the Total, Next Birthday with its Countdown, Weekday, Leap year, Zodiac sign and Chinese zodiac.
3. Switch to Difference to compare two dates, then tap Save to keep either result in Saved.

PERFECT FOR

• Anyone who wants an exact answer to "how old am I" — down to the day, hour and minute.
• Parents who track a baby's age in weeks and months and want the next birthday at a glance.
• Couples, siblings and friends who compare ages or settle who is older.
• Anyone filling in a form that asks for an age on a specific date.
• People curious about their zodiac sign, Chinese zodiac animal or the weekday they were born on.

MORE THAN A NUMBER

Pick a date and the app tells a small story about it: a Tuesday in a leap year, a Capricorn born in the Year of the Dragon, 11,247 days lived, 93 days to the next birthday. Enter a second date and the Difference screen shows how far apart two lives are — to the day.

Because every result can be saved under a name, the app grows into a personal list: children, parents, partners, grandparents, the start of a relationship or a job. Open Saved, tap a name, and the current age and the next birthday are already calculated.

YOUR DATES STAY WITH YOU

Everything you enter stays on your device. There is no account to create, and the saved list is stored locally. Useful Content opens helpful articles in the app when you want to read more; the calculations themselves need no internet connection.

Age calculator by date of birth (DOB) for your chronological age: answer "how old am I" in years, months, days, hours and minutes, count the days to your next birthday, find your zodiac sign and Chinese zodiac, and calculate the age difference between any two people.

Download Age Calculator and get the exact answer every time.

Recent changes:
Improved application stability