Understanding Korean numbers can feel tricky at first because Korean uses two different counting systems. There is the native Korean system and the Sino-Korean system, and each one is used in specific situations. Do not worry, though. Once you learn the pattern behind when to use each system, everything clicks into place. In this beginner friendly guide we will break down both systems with romanized examples and simple rules you can remember.
Why Korean Has Two Number Systems
Korean history includes deep cultural exchange with China, which brought a set of numbers based on Chinese pronunciation. These are the Sino-Korean numbers. At the same time, Korea kept its own original counting words, known as native Korean numbers. Rather than one system replacing the other, both survived and took on different jobs in the language.
The good news is that Korean did not keep two systems just to confuse learners. Each system has clear roles. Once you know which situations call for which set, you will always know which to reach for.
Native Korean Numbers: One to Ten
Native Korean numbers are used for counting things, telling the hour, and stating your age in casual contexts. Here are the first ten:
- 1 is hana
- 2 is dul
- 3 is set
- 4 is net
- 5 is daseot
- 6 is yeoseot
- 7 is ilgop
- 8 is yeodeol
- 9 is ahop
- 10 is yeol
One special thing to remember is that some native numbers change their form when they come directly before a counting word. Hana becomes han, dul becomes du, set becomes se, and net becomes ne. For example, one book is chaek han gwon, not chaek hana gwon. This shortened form appears often, so it is worth practicing early.
Sino-Korean Numbers: One to Ten
Sino-Korean numbers are used for dates, money, phone numbers, minutes, addresses, and large quantities. Here are the first ten:
- 1 is il
- 2 is i
- 3 is sam
- 4 is sa
- 5 is o
- 6 is yuk
- 7 is chil
- 8 is pal
- 9 is gu
- 10 is sip
A big advantage of the Sino-Korean system is how easily it builds larger numbers. To say 11, you combine ten and one to get sip il. To say 20, you say two tens, or i sip. To say 35, you say three tens five, or sam sip o. This logical pattern makes counting into the hundreds and thousands surprisingly simple once you know the first ten.
When to Use Each System
Here is the heart of the matter. Knowing which system to use is all about context. Let us break it down clearly.
Use native Korean numbers for:
- Counting objects, people, and animals. For example, sagwa se gae means three apples.
- Telling the hour when saying the time. For example, se si means three o clock.
- Stating age in casual speech. For example, seumul sal means twenty years old, where seumul is the native word for twenty.
Use Sino-Korean numbers for:
- Dates, months, and years. For example, sam wol means March, the third month.
- Money and prices. For example, cheon won means one thousand won.
- Minutes and seconds when telling time. For example, sip bun means ten minutes.
- Phone numbers, addresses, and any long string of digits.
A memorable example that shows both systems together is telling time. To say three ten, meaning ten minutes past three, you say se si sip bun. Notice that se si uses the native number for the hour, while sip bun uses the Sino-Korean number for the minutes. This mix feels strange at first but becomes second nature with practice.
Counting Words and Common Mistakes
When you count objects in Korean, you usually need a counting word, also called a counter, placed after the number. Different objects use different counters. Here are a few common ones:
- Gae is a general counter for objects, as in sagwa du gae, meaning two apples.
- Myeong or bun counts people, as in saram se myeong, meaning three people.
- Gwon counts books, as in chaek han gwon, meaning one book.
- Mari counts animals, as in gangaji ne mari, meaning four puppies.
The most common beginner mistake is using the wrong number system. For example, saying the hour with Sino-Korean numbers or counting apples with Sino-Korean numbers sounds unnatural to native ears. Another frequent slip is forgetting to shorten hana, dul, set, and net to han, du, se, and ne before a counter. Keeping these two points in mind will already put you ahead of many learners.
The best way to master both systems is through repetition in real contexts. Try counting objects around your home in native Korean, then read prices and dates aloud in Sino-Korean. Flashcards help, but speaking with a tutor who can quiz you and correct your counters makes the difference between memorizing and truly using numbers. You can practice counting live with a teacher at Kotudent.
Frequently Asked Questions
Q: Why does Korean have two number systems?
A: Korean has two number systems because of its history and cultural exchange with China. The native Korean system is original to Korea, while the Sino-Korean system came from Chinese influence. Both survived and now serve different purposes, such as counting objects versus stating dates and money.
Q: Which number system do I use to tell time in Korean?
A: Telling time uses both systems together. You use native Korean numbers for the hour, such as se si for three o clock, and Sino-Korean numbers for the minutes, such as sip bun for ten minutes. So three ten becomes se si sip bun.
Q: Do I really need counting words with Korean numbers?
A: Yes, when counting objects, people, or animals, Korean usually requires a counting word after the number. For example, you say sagwa se gae for three apples, using gae as the counter. Different items use different counters, so learning the common ones is important.