Japanese doesn't put a number straight onto a noun: you attach a counter chosen by the thing's shape or type. Start with four: 人 (nin) for people, 枚 (mai) for flat things, 本 (hon) for long thin things, and the native つ (tsu) series for almost anything else. Those four cover most everyday counting.
English speakers know the idea better than they think: "two sheets of paper," "a loaf of bread," "three head of cattle," "a pair of scissors." English only does this with certain nouns. Japanese does it with every noun. You can't say 三紙 for "three papers." You say 紙を三枚 (kami o sanmai), "paper, three flat things."
Word order is the second surprise. The usual pattern puts the noun first, then its particle, then the number and counter: ペンを二本ください (Pen o nihon kudasai), "Two pens, please." You can also say 二本のペン (nihon no pen), "two pens," but in requests and orders the first pattern is far more common. English speakers tend to put the number first because that's how English works, so practice the noun-first order until it feels natural.
These native Japanese numbers count objects that don't have an obvious category, and they are what you will use most when ordering food or shopping.
| Number | Japanese |
|---|---|
| one | 一つ (hitotsu) |
| two | 二つ (futatsu) |
| three | 三つ (mittsu) |
| four | 四つ (yottsu) |
| five | 五つ (itsutsu) |
| six | 六つ (muttsu) |
| seven | 七つ (nanatsu) |
| eight | 八つ (yattsu) |
| nine | 九つ (kokonotsu) |
| ten | 十 (tō) |
Ten has no つ, and the series stops there. From eleven up, you use the regular numbers, 十一 (jūichi) and so on, or switch to 個 (ko). The question word is いくつ (ikutsu), "how many?" It can also mean "how old?" when asking a small child, who may answer with the same series: 三つ (mittsu), three years old.
| Number | Japanese |
|---|---|
| one | 一人 (hitori) |
| two | 二人 (futari) |
| three | 三人 (sannin) |
| four | 四人 (yonin) |
| five | 五人 (gonin) |
| seven | 七人 (nananin or shichinin) |
One and two are irregular, and four is yonin, not yon-nin or shinin. The question is 何人 (nannin), "how many people?" In restaurants and hotels, staff use the politer 名 (mei) with 様 (sama): 二名様ですか (Ni-mei-sama desu ka), "A party of two?" You answer with the ordinary 二人です (Futari desu). Never use the polite 様 for your own group.
Paper, tickets, photos, stamps, plates, T-shirts, slices of bread. If it is thin and flat, it takes 枚 (mai). The good news: it is completely regular. 一枚 (ichimai), 二枚 (nimai), 三枚 (sanmai), 四枚 (yonmai), and 何枚 (nanmai) for "how many?" At a ticket counter, 切符を二枚ください (Kippu o nimai kudasai) means "Two tickets, please." English speakers often grab つ here, which is understandable but sounds off for tickets.
Pens, bottles, umbrellas, bananas, trees, cans of beer. Japanese also counts some less obvious things with 本 (hon), such as movies and phone calls, but start with the physical ones. The catch is that the pronunciation shifts with the number:
| Number | Japanese |
|---|---|
| one | 一本 (ippon) |
| two | 二本 (nihon) |
| three | 三本 (sanbon) |
| four | 四本 (yonhon) |
| six | 六本 (roppon) |
| eight | 八本 (happon or hachihon) |
| ten | 十本 (juppon or jippon) |
How many? is 何本 (nanbon). Note that 二本 (nihon) is spelled exactly like the word for Japan in romaji, though the kanji differ.
The changes in 本 are not random, and the same pattern returns with other counters. With counters that start with h, k, s or t, the numbers one, six, eight and ten often double the consonant: いっ (ip, ik, is, it), ろっ (rop, rok), はっ (hap, hak), じゅっ (jup, juk). Three often softens the next sound: sanbon, sanbai, sanbiki. Learn 本 thoroughly and you have the template for the rest.
| Counter | Used for | one / three / six |
|---|---|---|
| 杯 (hai) | cups, glasses, bowls | ippai / sanbai / roppai |
| 匹 (hiki) | small animals | ippiki / sanbiki / roppiki |
| 個 (ko) | small objects, eggs, apples | ikko / sanko / rokko |
| 冊 (satsu) | books, notebooks | issatsu / sansatsu / rokusatsu |
| 回 (kai) | times, occurrences | ikkai / sankai / rokkai |
| 台 (dai) | cars, machines, bikes | ichidai / sandai / rokudai |
One more worth knowing: 歳 (sai) for age. 八歳 (hassai) is eight years old, 十歳 (jussai) is ten, and twenty has its own word, 二十歳 (hatachi).
Japanese has two readings for four, seven and nine: よん (yon) or し (shi), なな (nana) or しち (shichi), and きゅう (kyū) or く (ku). With most counters, use yon, nana and kyū. Shi sounds like the word for death and is avoided in many contexts. But time is the exception English speakers trip over: four o'clock is 四時 (yoji), seven o'clock is 七時 (shichiji), and nine o'clock is 九時 (kuji).
| English | Japanese |
|---|---|
| Two coffees | コーヒーを二つ (kōhī o futatsu) |
| Two bottles of beer | ビールを二本 (bīru o nihon) |
| Three tickets | チケットを三枚 (chiketto o sanmai) |
| Four apples | りんごを四つ (ringo o yottsu) |
| Three of us | 三人です (sannin desu) |
When in doubt, the つ series is a safe fallback for objects up to ten, especially combined with pointing: これを一つ (kore o hitotsu). It sounds a little general, but it is never confusing. Just don't use it for people.
Counters stick when you use them on real things. Count what's on your desk out loud, order drinks in a café by number, or run a practice ticket-counter conversation with a tutor until the sound changes come out on their own.
Dictionaries list a large number, including many specialized ones, but everyday conversation relies on a small set. People, flat things, long things, small objects, animals, books, machines, cups and the general つ series cover most daily situations.
For objects up to ten, mostly yes, and people will understand you. It does not work for people, it stops at ten, and for tickets, bottles or books the specific counter sounds much more natural.
One and two people use old native Japanese readings, while three and up use the Chinese-derived numbers with nin. They are simply irregular and worth memorizing first, since you will say them every time you enter a restaurant.
匹 (hiki) covers small animals like cats, dogs and fish. Large animals such as cows and horses take 頭 (tō), and birds traditionally take 羽 (wa).
