Korean Age Chart by Birth Year
In 2026, year age = 2026 − birth year; international age equals that after your birthday and is one less before it. Someone born in 2000 (Dragon) is 26 by year age, 25 before and 26 after their 2026 birthday.
- Year age
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- Age before birthday
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- Age after birthday
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- Counting age
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International age per the Framework Act on Public Administration Art. 7-2; year age per the Military Service Act Art. 2(2). law.go.kr, checked 6 Oct 2026. Zodiac uses the solar birth year (January–February births may differ). Reference only.
How to read the age chart
- Pick a birth year to see year age, age before and after the birthday, and zodiac animal.
- Change the date to see another year; the chart below follows it.
- For an exact age, use the age calculator with your full birth date.
Age by birth year
| Born | Zodiac | Year age | Int'l age (before / after) |
|---|
FAQ
What age does Korea use officially?
Administrative ages use international age counted from the birth date unless a law says otherwise (Framework Act on Public Administration Art. 7-2).
What is year age?
Current year minus birth year — everyone adds a year on 1 January. The Military Service Act counts ages this way (Art. 2(2)).
What is traditional Korean counting age?
You're 1 at birth and add a year every New Year: year age + 1. It has no legal use.
When does the zodiac year change?
This chart uses the solar birth year. Traditionally the animal changes at Lunar New Year or Ipchun, so January–early February births may belong to the previous animal.
How do I get an exact age?
Use the full age calculator with your birth date.