How to use
- Choose a tab: Age, Birthday, Halfway, Zodiac or Century.
- Pick a birth date or another date with the date picker.
- Click Calculate and read the results.
The age calculator groups five small tools around dates of birth.
The Age tab takes a birth date and compares it with today's date. It shows your age in completed years, your age by Korean counting, the number of completed months you have lived, the number of days you have lived, and the number of days until your next birthday. Korean age is calculated as the current year minus the birth year plus one, so it does not depend on whether your birthday has passed this year.
The Birthday tab shows the day of the week you were born on, together with the birthstone and birth flower for your birth month.
The Halfway tab takes two dates and shows the date exactly halfway between them, along with the number of days apart. It can be used for the midpoint between two birthdays, or between today and a deadline.
The Zodiac tab shows your Western sign, using fixed date ranges for each sign, and your Chinese zodiac animal. The Chinese animal is based on the calendar year of birth only. It does not account for the date of the lunar new year, so people born in January or early February may find that their traditional animal is the previous year's.
The Century tab takes any date and shows which century and decade it falls in, such as the 21st century and the 2020s.
All calculations are made in your browser from the dates you choose, and nothing is uploaded.
FAQ
How is Korean age calculated?
The current calendar year minus your birth year, plus one. It changes every January 1, not on your birthday.
Is the Chinese zodiac result exact?
It is based on the calendar year only and ignores the lunar new year date, so it can differ for birthdays in January or early February.
What does the Halfway tab calculate?
The date exactly in the middle of two dates you choose, and how many days apart they are.
What does the Age tab count in months?
The number of completed months between the birth date and today.