There are two methods to express numbers in Korean. One method uses Sino-Korean numbers, and the other uses native Korean numbers.

**Sino-Korean Numbers**

Sino-Korean numbers are used for telephone numbers, bus route numbers, height, weight, address numbers, years, months, minutes, seconds, and prices.

1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 |

일 | 이 | 삼 | 사 | 오 | 육 | 칠 | 팔 | 구 | 십 |

11 | 20 | 36 | 40 | 50 | 100 | 200 | 1000 | 10,000 | 100,000 |

십일 | 이십 | 삼십육 (삼십뉵) | 사십 | 오십 | 백 | 이백 | 천 | 만 | 십만 |

**A few things to note:**

**1. Large Numbers: In Korean, large numbers are read based on units of ten thousand (****만****) instead of thousands (****천****). For example:**

– 123,456 is interpreted as 12,3456 and read as 12만 3456 (십이만 삼천사백오십육).

– Similarly, 1,234,567 is interpreted as 123,4567 and read as 123만 4567 (일백이십삼만 사천오백육십칠).

**2. Pronouncing Numbers Starting with 1: When a number is larger than 1 and begins with 1, the initial 1 (****일****) is not pronounced. The exception is official financial documents like bank checks or bonds.**

– 10: 십 (not 일십)

– 110: 백십 (not 일백십)

– 1,110: 천백십 (not 일천백십)

**3. Special Pronunciation for 6: Numbers like 16, 26, 36, etc., are pronounced with a nasal sound for 6:**

– 16: 십륙 (not 십육)

– 26: 이십륙 (not 이십육)

– 36: 삼십륙 (not 삼십육)

– 96: 구십륙 (not 구십육)

**4. Pronouncing Zero: The digit 0 is pronounced as either ****공**** or ****영****. For telephone numbers, ****공**** is used.**

– 5609-8345: 오육공구[에] 팔삼사오

– 010-1234-7096: 공일공 일이삼사[에] 칠공구육

**5. Reading Telephone Numbers: There are two ways to read telephone numbers.**

– 1304-3588: 일삼공사[에] 삼오팔팔

– 1304-3588: 천삼백사[국에] 삼천오백팔십팔

**Example Sentences**

What floor is it on? 몇 층에 있나요?

It’s on the 7^{th} floor. 7층에 있어요. (칠 층)

What is your phone number? 전화번호가 뭐예요?

It’s 010-303-4567. 010-303-4567 이예요. (공일공 삼공삼에 사오육칠)

Which bus goes there? 몇 번 버스가 거기로 가나요?

The bus 205 goes there. 205번 버스가 거기로 가요. (이백오번)

How much is this bag? 이 가방은 얼마예요?

It’s 300,000 won. 삼십만원이예요. (삼십만원)

How tall are you? 키가 어떻게 돼요?

(What is your height?)

I’m 180cm. 백 팔십 센티미터예요. (백 팔십 센티미터)

**Native Korean Numbers**

1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 |

하나 (=한) | 둘 (=두) | 셋 (=세) | 넷 (=네) | 다섯 | 여섯 | 일곱 | 여덟 | 아홉 | 열 |

11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 |

열 하나 | 열 둘 | 열 셋 | 열 넷 | 열다섯 | 열 여섯 | 열 일곱 | 열 여덟 | 열 아홉 | 스물 (=스무) |

30 | 40 | 50 | 60 | 70 | 80 | 90 | 100 | 101 | 200 |

서른 | 마흔 | 쉰 | 예순 | 일흔 | 여든 | 아흔 | 백 | 백일 | 이백 |

Native Korean numbers are used to express time and units. They are typically used with unit nouns that specify what is being counted, such as:

– 명 (number of people)

– 마리 (number of animals)

– 개 (number of things)

– 살 (age)

– 병 (number of bottles)

– 잔 (number of glasses or cups)

When these nouns are used, the Korean numbers that come before them are written in slightly different forms:

– 하나 becomes 한 (e.g., 학생 한 명)

– 둘 becomes 두 (e.g., 개 두 마리)

– 셋 becomes 세 (e.g., 커피 세 잔)

– 넷 becomes 네 (e.g., 콜라 네 병)

– 스물 becomes 스무 (e.g., 사과 스무 개)

**Example Sentences with Native Korean Numbers**

How many family members do you have? 가족이 몇 명이에요?

We are a family of four. 우리 가족은 네 명이에요.

How old is your younger sister? 여동생은 몇 살이에요?

My younger sister is 20 years old. 여동생은 스무 살이에요.

Two cheeseburgers and two cokes, please. 치즈버거 두개, 콜라 두개 주세요.

There are four students in my class. 제 반에는 네 명의 학생이 있어요.

Today is my parents’ 30^{th} wedding anniversary.

오늘은 우리 부모님 서른 번째 결혼 기념일이에요.

I have three dogs. 저는 개가 세 마리 있어요.

There are 20 pieces in a box. 한 상자에 스무 조각이 들어 있어요.

I’ll have a cup of coffee, please. 커피 한 잔 주세요.