🇰🇷 Find Your Korean Age
Discover your traditional Korean age instantly using only your birth year or full birthdate.
Note: Since 2023, Korea uses international age officially.
Korean Lunar Calendar Months
| Month Number | Korean Name | Romanized |
|---|---|---|
| 1 | 정월 (Jeong-wol) | January |
| 2 | 이월 (I-wol) | February |
| 3 | 삼월 (Sam-wol) | March |
| 4 | 사월 (Sa-wol) | April |
| 5 | 오월 (O-wol) | May |
| 6 | 유월 (Yu-wol) | June |
| 7 | 칠월 (Chil-wol) | July |
| 8 | 팔월 (Pal-wol) | August |
| 9 | 구월 (Gu-wol) | September |
| 10 | 시월 (Si-wol) | October |
| 11 | 십일월 (Sibir-wol) | November |
| 12 | 십이월 (Sibi-wol) | December |
Why Use Korean Age Calculator?
Accurate Results
Calculates exact age in seconds
Mobile-Friendly
Works smoothly on all devices
Privacy Safe
No data stored or tracked
How Korean Age Works
Step 1
Enter your Date of Birth
Step 2
System adds 1 or 2 years according to Korean tradition
Step 3
Get your Korean Age instantly!
Use Cases (Who Can Use It?)
Korean Citizens
Understand your age in Korean system
Students / Schools
Track school-age eligibility in Korea
Legal & Official Use
Useful for age-based laws and documents
Life Events
Planning birthdays & milestones Korean style
How to Calculate Korean Age in 2025: Complete Guide
What Is Korean Age?
Korean age works differently from the age system used in most countries.
In most places, your age increases on your birthday. That is called international age.
In the Korean age system:
You are 1 year old at birth.
Everyone gains 1 year together on January 1.
Because of this, someone who is 20 internationally may be 21 or even 22 in Korean age. Compare with the Chinese Age Calculator.
Why Korean Age Matters
Age affects several parts of Korean society.
Social interactions
Korean culture places strong value on age. How you speak changes depending on who is older.
Legal rules
Certain legal rights depend on Korean age, such as voting or purchasing alcohol.
School and work
School entry rules and some job requirements follow age-based systems.
Korean Age vs International Age
| Age Type | Start Age | When Age Increases |
|---|---|---|
| Korean Age | 1 at birth | Every January 1 |
| International Age | 0 at birth | On your birthday |
Check your International Age with our Chronological Age Calculator.
Types of Age in Korea
Korean Age (한국 나이, Hanguk Nayi)
Starts at 1
Increases every January 1
Used traditionally in daily life
International Age (만 나이, Man Nayi)
Starts at 0
Increases on your birthday
Used officially since 2023
How to Calculate Korean Age
Method 1: Year-Based Korean Age
This is the simplest formula.
Korean Age = (Current Year – Birth Year) + 1
Example for 2025:
Born in 2010 → (2025 – 2010) + 1 = 16
Method 2: Birthday-Based Korean Age
This method considers whether your birthday passed this year.
If your birthday has passed: Korean Age = International Age + 1
If your birthday has not passed: Korean Age = International Age + 2
Use our Korean Age Calculator to avoid manual steps
Examples
Born: December 31, 2010
Date: January 1, 2025
International age = 14
Korean age = 16
You are considered 16 even though your birthday was one day earlier.
2023 Korean Age Law Change
Since June 2023, South Korea uses international age for:
Legal processes
Official documents
Government services
However, Korean age continues to be used in daily conversations and cultural settings.
Korean Age in Daily Life
Social rules
Age determines politeness levels in conversations.
Family and friends
Korean language includes special words for older siblings or friends, such as:
| Word | When Used | Meaning |
|---|---|---|
| 누나 (nuna) | Boy → older sister | Older sister |
| 언니 (eonni) | Girl → older sister | Older sister |
| 형 (hyeong) | Boy → older brother | Older brother |
| 오빠 (oppa) | Girl → older brother | Older brother |
Laws based on age
Examples include school start age, voting age, and drinking age.
Korean Age Vocabulary
A few common age-related terms:
나이 (Age)
생일 (Birthday)
만 나이 (International Age)
한국 나이 (Korean Age)
How to Say Your Age in Korean
Asking age
몇 살이야? (Casual)
나이가 어떻게 돼요? (Polite)
Answering
___살이에요. (I am ___ years old.)
Numbers 1–10
| Number | Korean | Romanized |
|---|---|---|
| 1 | 하나 | hana |
| 2 | 둘 | dul |
| 3 | 셋 | set |
| 4 | 넷 | net |
| 5 | 다섯 | da-seot |
| 6 | 여섯 | yeo-seot |
| 7 | 일곱 | il-gop |
| 8 | 여덟 | yeo-deol |
| 9 | 아홉 | a-hop |
| 10 | 열 | yeol |
FAQs
How old is 17 in Korean age?
Usually 18 or 19 depending on birthday.
How do I calculate my Korean age?
Use: (Current Year – Birth Year) + 1.
Is 18 a minor in Korea?
18 is old enough to vote. Legal drinking age is typically 19.
Am I 2 years older in Korea?
Yes, if your birthday has not passed during the year.
Do Koreans still use Korean age in 2025?
Officially no, socially yes.
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⭐ 사용자 후기
“정말 유용한 도구예요! 인터페이스가 깔끔하고 나이 계산이 빨라요.”
— 김민지
“한국식 나이 계산기 최고예요! 빠르고 정확합니다.”
— 박준호
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— 이서연