Skip to content
Kordu Tools

Age Calculator

Calculate your exact age in years, months, and days with birthday countdown and zodiac sign.

Your age

—

—

Time alive

Total years

—

Total months

—

Total weeks

—

Total days

—

Total hours

—

Total minutes

—

Birthday

Next birthday

—

Days until

—

Birthdays had

—

About you

Western zodiac

—

Chinese zodiac

—

Generation

—

Born in

—

Leap years lived

—

Christmases

—

Fun facts

Heartbeats

—

Based on 72 bpm average

Breaths taken

—

Based on 16/min average

Time spent sleeping

—

Based on 8 hours/day

Life milestones

Enter your date of birth to see your age breakdown.

How to use

  1. 1

    Enter your date of birth

    Use the date picker to select the day, month, and year you were born.

  2. 2

    Review your age details

    See your exact age, total days alive, next birthday date, days until your birthday, birth day of the week, and zodiac sign.

  3. 3

    Change the reference date

    Optionally adjust the 'As of' date to calculate your age at any past or future point in time.

Frequently asked questions

How is the exact age calculated?
Age is calculated using calendar duration — counting complete years, then remaining months, then remaining days. This matches how age is commonly understood.
Which zodiac system does it use?
Western tropical astrology dates. The twelve signs follow the standard date ranges used in most Western horoscope systems.
Can I calculate age at a future date?
Yes. Change the 'As of' date to any future date to see what your age will be on that day.
Is any data sent to a server?
No. All age calculations happen in your browser. Your date of birth is never transmitted anywhere.

Enter your date of birth to see your exact age broken down into years,

months, and days. View the total number of days you have been alive, the

date of your next birthday, how many days until it, the day of the week

you were born, and your Western zodiac sign. Optionally change the "as of"

date to calculate age at any point in time. All calculations run locally

in your browser.

Related tools

Date Difference Calculator

Calculate the exact difference between two dates in years, months, days, and business days.

Countdown Timer

Live countdown to any target date or duration with presets, alerts, pause/resume, reminders, and persistence.

Timezone Converter

Convert times between timezones and compare up to four zones side by side.