Korean Age Calculator

Enter your date of birth to instantly see your international age, Korean year age, traditional counting age, days to your next birthday, and zodiac animal

Your date of birth is calculated in your browser only and is never sent to a server or stored

Enter Date of Birth

Date of birth

Reference date

Defaults to today. Change it to see your age on a specific date

이 포스팅은 쿠팡 파트너스 활동의 일환으로, 이에 따른 일정액의 수수료를 제공받습니다.

Your Age

Enter your date of birth to see results instantly

Which Age Applies When? (Korea)

Legal adulthoodInternational age

You become a legal adult on your 19th birthday, the age at which you can sign contracts without parental consent.

VotingInternational age

You can vote in presidential, National Assembly, and local elections if you are 18 or older on election day.

Buying alcohol and tobaccoYear age

The Juvenile Protection Act allows purchases from January 1 of the year you turn 19, regardless of your birthday.

Military serviceYear age

Under the Military Service Act, men enter the reserve pool in the year they turn 18 and take the conscription examination in the year they turn 19.

Starting elementary schoolBirth year

Children start school on March 1 of the year after the year they turn 6, so children born in the same year start together.

Contracts, documents, hospitalsInternational age

Since June 28, 2023, ages in laws, contracts, and official documents are calculated and stated as international age unless another rule applies.

2026 Age Chart by Birth Year

International age and year age by birth year, as of 2026. International age differs by one depending on whether your birthday has passed that year.

Birth year	Zodiac	Age (before birthday)	Age (after birthday)	Year age
2026	Horse	0	0	0
2025	Snake	0	1	1
2024	Dragon	1	2	2
2023	Rabbit	2	3	3
2022	Tiger	3	4	4
2021	Ox	4	5	5
2020	Rat	5	6	6
2019	Pig	6	7	7
2018	Dog	7	8	8
2017	Rooster	8	9	9
2016	Monkey	9	10	10
2015	Goat	10	11	11
2014	Horse	11	12	12
2013	Snake	12	13	13
2012	Dragon	13	14	14
2011	Rabbit	14	15	15
2010	Tiger	15	16	16
2009	Ox	16	17	17
2008	Rat	17	18	18
2007	Pig	18	19	19

Frequently Asked Questions

How is international age calculated?

Subtract your birth year from the current year, then subtract one more if your birthday hasn't come yet this year. For example, someone born on May 15, 1990 is 35 until May 14, 2026 and turns 36 on May 15.

What changed with Korea's age system in 2023?

Amendments to the Civil Act and the Framework Act on Public Administration took effect on June 28, 2023. Since then, ages in laws, contracts, and official documents are calculated as international age unless another rule applies, ending the confusion between traditional counting age and year age.

At what age can I buy alcohol and tobacco in Korea?

The Juvenile Protection Act uses year age, not international age. You can buy them from January 1 of the year you turn 19, so even if you are still 18 because your birthday hasn't passed, you can buy them once your year age is 19.

When does someone born on February 29 get older in a non-leap year?

This calculator counts the birthday as March 1 in non-leap years. Under the Korean Civil Act, if the last month of a period has no matching date, the period ends on the last day of that month, so the age goes up on March 1, after February 28.

Does the zodiac animal change on January 1?

This calculator shows the zodiac animal by solar birth year. Traditionally it is often based on Lunar New Year or the start of spring (Ipchun), so people born in January or February are sometimes counted under the previous year's animal.

Other Useful Tools

Date Calculator

Calculate the difference between two dates or D-Day countdown

Timezone Converter

Convert time between different time zones worldwide with real-time world clock

Character Counter

Count characters, words, and paragraphs in your text in real-time

View all Date Tools →

Fun Tests

🐱

What Animal Am I?

Find out your animal type with 5 questions!

🐱🐕🦉🐻🦊🐰

Start Test

View More Tests →