Age Calculator
Calculate international age, Korean age, and zodiac sign
Select your date of birth
Overview
Enter your date of birth and see both international age and Korean age (counting age) calculated at once. Korea legally switched to international age in 2023, but counting age is still commonly used in daily life, so knowing both is practical. Your Chinese zodiac sign is shown too.
Key Features
- International age calculation
- Korean age (counting age) calculation
- Chinese zodiac sign display
- Days until next birthday
- Day of the week you were born
How to Use
- Enter or select your date of birth.
- International age and Korean age are calculated automatically.
- Check your zodiac sign, days until your next birthday, and birth day of the week.
Tips
- International age = current year - birth year, minus 1 if your birthday hasn't passed yet this year.
- Korean age (counting age) = current year - birth year + 1. You are 1 at birth.
- Since June 28, 2023, Korea's official legal age has been unified to international age.
FAQ
- Why are international age and Korean age different?
- Korean counting age starts at 1 at birth and adds a year every January 1. International age starts at 0 and adds a year on each birthday. This causes a difference of 1 to 2 years.
- Is Korean age still used after the 2023 law change?
- Legally, international age is now official, but counting age persists in casual conversation. It is especially common among older generations.
- How is the Chinese zodiac sign determined?
- It is determined by the remainder of dividing the birth year by 12. The cycle of Rat, Ox, Tiger, Rabbit, Dragon, Snake, Horse, Goat, Monkey, Rooster, Dog, and Pig repeats every 12 years.