Korean Numbers 1-100

Korean has two complete number systems and uses both every day. Sino-Korean handles money, dates and minutes; native Korean handles ages, hours and counting things.

Updated 2026-08-08

Sino-Korean 1 to 10

1

일

il

eel

2

이

i

ee

3

삼

sam

sahm

4

사

sa

sah

5

오

o

oh

6

육

yuk

yook

7

칠

chil

cheel

8

팔

pal

pahl

9

구

gu

goo

10

십

sip

ship

Sino-Korean by tens

10

십

sip

ship

20

이십

isip

ee-SHIP

Two-ten. The pattern never changes

30

삼십

samsip

sahm-SHIP

40

사십

sasip

sah-SHIP

50

오십

osip

oh-SHIP

60

육십

yuksip

yook-SHIP

70

칠십

chilsip

cheel-SHIP

80

팔십

palsip

pahl-SHIP

90

구십

gusip

goo-SHIP

100

백

baek

baek

Not ilbaek. One hundred is just baek

Sino-Korean builds with no new words

Below twenty, put ten first: 11 is 십일, sip-il, ten-one.

From twenty up, put the multiplier first: 20 is 이십, i-sip, two-ten.

Then add the unit. 47 is 사십칠, sasip-chil, four-ten-seven. There is nothing new to learn between 20 and 99.

This is the same logic Japanese and Chinese use, so if you know one the arithmetic carries straight over.

  • 사십칠47, four-ten-seven
  • 팔십이82, eight-ten-two
  • 구십구99

Native Korean 1 to 10

1

하나

hana

HAH-nah

Becomes 한 han in front of a counter

2

둘

dul

dool

Becomes 두 du in front of a counter

3

셋

set

set

Becomes 세 se in front of a counter

4

넷

net

net

Becomes 네 ne in front of a counter

5

다섯

daseot

DAH-suht

6

여섯

yeoseot

YUH-suht

7

일곱

ilgop

EEL-gohp

8

여덟

yeodeol

YUH-duhl

9

아홉

ahop

AH-hohp

10

열

yeol

yuhl

Native Korean by tens

20

스물

seumul

SUH-mool

Becomes 스무 seumu before a counter

30

서른

seoreun

SUH-reun

40

마흔

maheun

MAH-heun

50

쉰

swin

shwin

60

예순

yesun

YEH-soon

70

일흔

ilheun

EEL-heun

80

여든

yeodeun

YUH-deun

90

아흔

aheun

AH-heun

The native system stops here. 100 is baek in both

Which system, and when

Sino-Korean is for money, dates, months, minutes, phone numbers, addresses and anything above ninety-nine. If it is written on a price tag, it is Sino-Korean.

Native Korean is for ages, hours on a clock, and counting things: people, bottles, books. It runs out at ninety-nine and hands over to Sino-Korean from a hundred.

Telling the time uses both in the same breath. 세 시 삼십 분 is 3:30, with a native three for the hour and a Sino thirty for the minutes. This catches out every learner once.

The first four native numbers shorten in front of a counter word: 하나 becomes 한, so one person is 한 사람 rather than 하나 사람. Twenty does the same, 스물 becoming 스무.

  • 세 시 삼십 분3:30, native hour and Sino minutes
  • 스무 살twenty years old, native with the age counter
  • 오천 원5,000 won, Sino for money

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