Korean, unusually, runs two complete number systems in parallel, and you cannot get by with only one. There is the Sino-Korean set (일·이·삼…), borrowed from Chinese, which handles dates, money, minutes, and phone numbers. And there is the native set (순우리말 수사) — 하나·둘·셋 — the home-grown numerals this page introduces. The native numbers are the ones you use to count real things you can point at: apples on the table, people in a room, cats, cups of coffee, the hour on the clock, how many times something happened. For an English speaker the hard part is not memorizing ten words — it is accepting that "learn the Korean numbers" is not a one-time task. On every single count you take a fork: native or Sino, decided not by the number but by what you are counting.
The ten native numerals
Here is the core set, 1 through 10 — the foundation everything else is built on:
| # | Hangul | Reading |
|---|---|---|
| 1 | 하나 | hana |
| 2 | 둘 | dul |
| 3 | 셋 | set |
| 4 | 넷 | net |
| 5 | 다섯 | daseot |
| 6 | 여섯 | yeoseot |
| 7 | 일곱 | ilgop |
| 8 | 여덟 | yeodeol |
| 9 | 아홉 | ahop |
| 10 | 열 | yeol |
A spelling note worth catching early: 여덟 (8) is written with the double final consonant ㄼ but pronounced simply [여덜] — the ㅂ is silent here. Say yeodeol, and never let the written ㅂ tempt you into ×[여덥].
These are the numbers Koreans chant when counting out loud — over a task, before a group photo, during a workout:
하나, 둘, 셋… 김치!
hana, dul, set… gimchi
One, two, three… smile! (김치 is Korea's 'cheese' for photos)
What the native numbers are for: things you can point at
The native set is the language's tangible-counting system. Reach for it when you are counting concrete, countable stuff:
- Objects: apples, books, cups, tickets, cars.
- People and animals: how many guests, how many puppies.
- Age (in casual speech): 다섯 살, 스무 살.
- Clock hours: 열 시 (ten o'clock).
- Occurrences: 세 번 (three times), 열 번 (ten times).
사과 다섯 개 주세요.
sagwa daseot gae juseyo
Five apples, please.
강아지 여섯 마리가 태어났어요.
gang-aji yeoseot mariga tae-eonasseoyo
Six puppies were born.
우리 딸은 아홉 살이에요.
uri ttareun ahop sarieyo
My daughter is nine years old.
저는 보통 열 시에 자요.
jeoneun botong yeol sie jayo
I usually go to sleep at ten o'clock.
그 영화 벌써 열 번 봤어요.
geu yeonghwa beolsseo yeol beon bwasseoyo
I've already seen that movie ten times.
Notice that in every case a little word rides along after the number — 개 (things), 마리 (animals), 살 (years of age), 시 (o'clock), 번 (times). These are counters (classifiers), and native numbers are their natural partners; the whole system of counters gets its own overview page.
The hard limit: native stops at 99
Now the single most important structural fact about this system: the native numbers only reach 99. There are native words for the tens up to ninety — 스물(20), 서른(30), 마흔(40)… 아흔(90) — so you can count all the way to 아흔아홉 (99). But there is no native word for one hundred. The moment a count reaches a hundred, Korean abandons the native set entirely and switches to Sino 백 (100), 천 (1,000), 만 (10,000).
사과가 백 개 넘게 있어요.
sagwaga baek gae neomge isseoyo
There are more than a hundred apples. (백 is Sino — there's no native word for 100)
So even a run of the most tangible objects imaginable flips to Sino past ninety-nine: you count 아흔여덟 개, 아흔아홉 개 — and then 백 개, not any native form. This handoff has its own page, where native runs out and Sino takes over; for now, just plant the fact: native = 1–99, and not a step further.
A preview: the shapes shift before a counter
One wrinkle you must be warned about now, because it hits immediately. The dictionary forms 하나, 둘, 셋, 넷 (and 스물, 20) are the shapes you use when counting in the abstract — "하나, 둘, 셋." But the instant a counter follows, the first four change shape: 하나 → 한, 둘 → 두, 셋 → 세, 넷 → 네. So "one thing" is 한 개, never ×하나 개.
하나, 둘, 셋 — 사과 세 개요.
hana, dul, set — sagwa se gaeyo
One, two, three — three apples. (셋 becomes 세 before the counter 개)
The numbers 다섯 through 열 do not change (다섯 개, 열 개 stay put), which is why beginners often don't notice the rule and then mis-say the small ones. This shape-shift is important enough to have its own page — the forms that change: 한·두·세·네·스무 — and it is where most native-number errors are actually made.
Why this fork exists at all
It helps to know that this is not arbitrary duplication. The native numbers are genuinely older Korean vocabulary; the Sino numbers came in with centuries of Chinese-derived words (like the vocabulary for calendars, money, and mathematics). So the two systems settled into a division of labor that still holds: the ancient, tangible acts of counting kept the native words, while everything that arrived labeled with a Sino number — dates, prices, measured units — kept Sino. You are not learning two random lists; you are learning which world each count belongs to. The head-to-head decision guide lives at native vs Sino numbers.
Common Mistakes
1. Defaulting to Sino when counting real objects or people. English has one number set, so learners often grab the first Korean set they learned (usually Sino) for everything. Counting tangible things needs the native set.
- ✗ 사람이 삼 명 왔어요. (Sino 삼 for counting people)
- ✓ 사람이 세 명 왔어요. — sarami se myeong wasseoyo — "Three people came."
2. Using Sino for age in casual speech. Everyday age is native + 살.
- ✗ 제 아들은 오 살이에요. (Sino 오 with 살)
- ✓ 제 아들은 다섯 살이에요. — je adeureun daseot sarieyo — "My son is five."
3. Using native for measured or coded numbers. The flip side: minutes, dates, and money are Sino, not native.
- ✗ 다섯 분만 기다려 주세요. (native 다섯 for minutes)
- ✓ 오 분만 기다려 주세요. — o bunman gidaryeo juseyo — "Please wait just five minutes." (Sino 오 + 분)
4. Trying to count past 99 with native words. There is no native hundred; switch to Sino 백.
- ✗ (inventing a native 100) …아흔아홉, 열열 개
- ✓ …아흔아홉, 백 개 — …aheunahop, baek gae — "…ninety-nine, a hundred." (백 is Sino)
5. Pronouncing the ㅂ in 여덟. The written ㄼ surfaces as [ㄹ] only.
- ✗ 여덟 → [여덥]
- ✓ 여덟 → [여덜] — yeodeol — "eight."
Key Takeaways
- The native set (하나·둘·셋·넷·다섯·여섯·일곱·여덟·아홉·열) counts tangible things: objects, people, animals, casual age, and clock hours.
- Choosing native vs Sino is a fork on every count, decided by what you're counting — not a one-time vocabulary choice.
- Native runs only 1–99; there is no native word for 100, so large amounts switch to Sino 백·천·만.
- Before a counter, 하나·둘·셋·넷 (and 스물) change shape to 한·두·세·네·스무 — so "one thing" is 한 개, never ×하나 개.
- The classic beginner error is using Sino to count real objects (×삼 명) instead of native 세 명.
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Start learning Korean→Related Topics
- Sino-Korean Numbers: 일, 이, 삼, 사…TOPIK 1 — The borrowed-from-Chinese number system that Korean uses for dates, money, minutes, and anything measured or abstract — and how it builds every number from ten simple digits by pure place value.
- The Forms That Change: 한, 두, 세, 네, 스무TOPIK 1 — The classic Korean-beginner rule: 하나·둘·셋·넷·스물 drop their ending and become 한·두·세·네·스무 the moment a counter follows — 한 개, 두 명, 세 마리, 네 시, 스무 살, never ×하나 개.
- Native Tens: 스물, 서른, 마흔, 쉰…TOPIK 1 — Korean's native tens — 스물·서른·마흔·쉰·예순·일흔·여든·아흔 — are ten separate memorized words, not a 'two-ten / three-ten' build; they power casual age and run only up to 아흔아홉 (99) before Sino takes over.
- Native or Sino? Which Counter Takes WhichTOPIK 2 — The master rule for Korea's two number systems: if you could point and tally the things, use native numbers (개, 명, 마리, 시, 살); if it's an abstract unit, measure, rank, or calendar/clock unit, use Sino (분, 원, 년, 층, 인분). Plus the clash cases that break learners.
- Native vs Sino-Korean Numbers: Which System WhenTOPIK 1 — Korean runs two number systems in parallel — native Korean (하나, 둘, 셋) for tangible quantities, the hour, and age, and Sino-Korean (일, 이, 삼) for dates, money, minutes, and everything above 99 — and the two routinely appear side by side in one phrase.