Hello, I’m Kodak.
You already know that san means “three.”
But “three pencils,” “three sheets of paper,” and “three apples” are:
three pencils
紙三枚 (kami sanmai)
three sheets of paper
りんご三個 (ringo sanko)
three apples
A counter tells the listener what kind, shape, or category of thing you are counting.
Japanese quantities are commonly formed as:
number + counter
個 (ko) counts many small or individual objects.
枚 (mai) counts thin, flat objects.
本 (hon) counts long, narrow, or cylindrical objects.
The counter is chosen according to the thing being counted, and its pronunciation may change after certain numbers.
This article explains:
② how to choose between ko, mai, and hon
③ the complete 1–10 pronunciation charts for those three counters
④ why hon changes to pon and bon
⑤ the natural word order of Japanese quantity phrases
⑥ how to ask “how many?” with nanko, nanmai, and nanbon
⑦ a practical list of common Japanese counter words
⑧ what to do when you do not know the correct counter
What Is a Japanese Counter Word?
A Japanese counter is a word placed after a number to classify what is being counted.
三 + 個 = 三個 (sanko)
three individual objects
三 + 枚 = 三枚 (sanmai)
three flat objects
三 + 本 = 三本 (sanbon)
three long objects
English sometimes uses similar expressions:
two cups of coffee
three pairs of shoes
four heads of cattle
Japanese uses this kind of classification much more extensively. The shape and nature of the item often determine the counter.
Some objects can take different counters depending on how the speaker views them. A banana can be counted as a long object with 本, as one general item with つ, or as one piece with another counter after it is cut.
① It identifies the category or shape of the item.
② It shows how the speaker is conceptualizing the item in that situation.
The Three Essential Counters: Ko, Mai, and Hon
For beginners, 個 (ko), 枚 (mai), and 本 (hon) are among the most useful counters to learn first.
small, separate, or individual objects
Examples: apples, eggs, balls, small boxes
枚 (mai)
thin and flat objects
Examples: paper, tickets, plates, shirts, photographs
本 (hon)
long, narrow, or cylindrical objects
Examples: pencils, bottles, umbrellas, bananas, trees
Think separate object → ko, flat object → mai, and long object → hon. Then learn exceptions and other categories gradually.
How to Use the Ko Counter in Japanese
A general counter for individual or relatively small objects
Common things counted with 個 include:
卵 — eggs
ボール — balls
時計 — watches and clocks
小さな箱 — small boxes
消しゴム — erasers
おにぎり — rice balls
キャンディー — candies
りんごを三個買いました。
Ringo o sanko kaimashita.
I bought three apples.
卵を六個使います。
Tamago o rokko tsukaimasu.
I will use six eggs.
ボールが八個あります。
Bōru ga hakko arimasu.
There are eight balls.
個 is a counter for separate units. It is especially common with small objects, but the important idea is that each object is treated as one individual item.
Ko Counter: 1–10 Pronunciation Chart
2 二個 にこ niko
3 三個 さんこ sanko
4 四個 よんこ yonko
5 五個 ごこ goko
6 六個 ろっこ rokko
7 七個 ななこ nanako
8 八個 はっこ hakko
9 九個 きゅうこ kyūko
10 十個 じゅっこ／じっこ jukko / jikko
? 何個 なんこ nanko
ichi + ko → ikko
roku + ko → rokko
hachi + ko → hakko
jū + ko → jukko / jikko
Memorize these as complete spoken forms.
How to Use the Mai Counter in Japanese
A counter for thin, flat, sheet-like objects
Common things counted with 枚 include:
切手 — stamps
チケット — tickets
写真 — photographs
皿 — plates
シャツ — shirts
ハンカチ — handkerchiefs
CD — CDs
カード — cards
紙を三枚ください。
Kami o sanmai kudasai.
Please give me three sheets of paper.
チケットを二枚買いました。
Chiketto o nimai kaimashita.
I bought two tickets.
写真を十枚撮りました。
Shashin o jūmai torimashita.
I took ten photographs.
A shirt can be spread out as a thin piece of fabric, and a plate is broad and flat. The category is cultural and linguistic, not a scientific measurement.
Mai Counter: 1–10 Pronunciation Chart
2 二枚 にまい nimai
3 三枚 さんまい sanmai
4 四枚 よんまい yonmai
5 五枚 ごまい gomai
6 六枚 ろくまい rokumai
7 七枚 ななまい nanamai
8 八枚 はちまい hachimai
9 九枚 きゅうまい kyūmai
10 十枚 じゅうまい jūmai
? 何枚 なんまい nanmai
You still need the usual number readings such as yon and nana, but the counter remains mai every time.
How to Use the Hon Counter in Japanese
A counter for long, narrow, cylindrical, or line-like objects
Common things counted with 本 include:
ペン — pens
ボトル／瓶 — bottles
傘 — umbrellas
バナナ — bananas
木 — trees
ろうそく — candles
ネクタイ — neckties
鉛筆を一本ください。
Enpitsu o ippon kudasai.
Please give me one pencil.
水を二本買いました。
Mizu o nihon kaimashita.
I bought two bottles of water.
庭に木が三本あります。
Niwa ni ki ga sanbon arimasu.
There are three trees in the garden.
The meaning is determined by grammar and context.
one long object related to a book? Usually unnatural without special context
本を一冊
one book
鉛筆を一本
one pencil
Hon Counter: 1–10 Pronunciation Chart
2 二本 にほん nihon
3 三本 さんぼん sanbon
4 四本 よんほん yonhon
5 五本 ごほん gohon
6 六本 ろっぽん roppon
7 七本 ななほん nanahon
8 八本 はっぽん happon
9 九本 きゅうほん kyūhon
10 十本 じゅっぽん／じっぽん juppon / jippon
? 何本 なんぼん nanbon
With this counter, the first sound alternates among h, p, and b.
The Hon / Pon / Bon Pattern
ippon, roppon, happon, juppon / jippon
Bon after 3 and in the question word
sanbon, nanbon
Hon after 2, 4, 5, 7, and 9
nihon, yonhon, gohon, nanahon, kyūhon
Practice them as groups: ippon, nihon, sanbon…
Hon vs Mai vs Ko: How Do You Choose?
1. Is it a separate small item?
Use 個 (ko).
2. Is it thin and flat?
Use 枚 (mai).
3. Is it long and narrow?
Use 本 (hon).
three apples
⇒ separate individual objects
切符三枚
three tickets
⇒ thin flat objects
傘三本
three umbrellas
⇒ long objects
Counter categories do not always match the first English adjective you would choose.
Can One Object Use More Than One Counter?
Yes. The counter can change according to the object’s form, packaging, or the speaker’s focus.
one banana viewed as a long object
バナナ一つ
one banana viewed as one general item
バナナ一房
one bunch of bananas
one bottle of water
水一杯
one cup or glass of water
水一滴
one drop of water
It can tell us whether the water is in a bottle, in a cup, or present as a drop—even when the noun itself stays the same.
Japanese Counter Word Order
The most useful beginner pattern is:
りんごを三個買いました。
Ringo o sanko kaimashita.
I bought three apples.
机の上に紙が五枚あります。
Tsukue no ue ni kami ga gomai arimasu.
There are five sheets of paper on the desk.
冷蔵庫に水が二本あります。
Reizōko ni mizu ga nihon arimasu.
There are two bottles of water in the refrigerator.
Say りんごを三個, or connect the quantity to the noun with の: 三個のりんご.
I bought three apples.
○ 三個のりんごを買いました。
I bought three apples.
× 三個りんごを買いました。
How Do You Ask “How Many?” with Counters?
Replace the number with 何 (nan) and use the appropriate counter.
how many individual objects?
何枚 (nanmai)
how many flat objects?
何本 (nanbon)
how many long objects?
りんごを何個買いましたか。
Ringo o nanko kaimashita ka.
How many apples did you buy?
チケットは何枚必要ですか。
Chiketto wa nanmai hitsuyō desu ka.
How many tickets do you need?
水を何本飲みましたか。
Mizu o nanbon nomimashita ka.
How many bottles of water did you drink?
Learn the question word as the complete form nanbon.
What If You Do Not Know the Correct Counter?
Beginners do not need to memorize every Japanese counter immediately.
hitotsu, futatsu, mittsu…
Broad and useful for many general non-human things from 1 to 10
Useful fallback 2: 個
Useful for many separate or individual objects and available above 10
りんごを二つください。
Ringo o futatsu kudasai.
Two apples, please.
りんごを二個ください。
Ringo o niko kudasai.
Two apples, please.
Both are natural.
Use a general counter to keep communicating, then learn the specific counter later.
Learn more: Hitotsu, Futatsu Counting and the -Tsu Counter
Japanese Counter Words List
The following list covers many counters that beginners and intermediate learners frequently encounter.
General Objects
general non-human things from 1 to 10
一つ (hitotsu), 二つ (futatsu), 三つ (mittsu)
個 (ko)
individual or relatively small objects
一個 (ikko), 三個 (sanko), 六個 (rokko)
Shape-Based Counters
thin and flat objects: paper, tickets, plates, shirts
本 (hon / pon / bon)
long objects: pencils, bottles, umbrellas, trees
粒 (tsubu)
small grains, drops, seeds, pills, or bead-like objects
束 (taba)
bundles or bunches
切れ (kire)
slices or cut pieces
People and Animals
people
一人 (hitori), 二人 (futari), 三人 (sannin)
匹 (hiki / piki / biki)
small animals such as cats, dogs, fish, and insects
一匹 (ippiki), 二匹 (nihiki), 三匹 (sanbiki)
頭 (tō)
large animals such as cows, horses, and elephants
一頭 (ittō), 二頭 (nitō), 三頭 (santō)
羽 (wa)
birds and, traditionally, rabbits
一羽 (ichiwa), 二羽 (niwa), 三羽 (sanwa)
Books, Machines, Clothing, and Buildings
bound books, notebooks, and magazines
一冊 (issatsu), 二冊 (nisatsu), 三冊 (sansatsu)
台 (dai)
machines, appliances, bicycles, and vehicles
一台 (ichidai), 二台 (nidai), 三台 (sandai)
着 (chaku)
complete items or sets of clothing
一着 (itchaku), 二着 (nichaku), 三着 (sanchaku)
足 (soku)
pairs of shoes, socks, and other footwear
一足 (issoku), 二足 (nisoku), 三足 (sanzoku)
軒 (ken / gen)
houses, shops, and buildings
一軒 (ikken), 二軒 (niken), 三軒 (sangen)
Food and Drink
cups, glasses, or bowlfuls of drink and food
一杯 (ippai), 二杯 (nihai), 三杯 (sanbai)
皿 (sara)
plates or platefuls of food
一皿 (hitosara), 二皿 (futasara)
膳 (zen)
served meals, pairs of chopsticks, or place settings
人前 (ninmae)
servings or portions for a number of people
Events, Frequency, and Order
occurrences and repetitions
一回 (ikkai), 二回 (nikai), 三回 (sankai)
度 (do)
times, occasions, degrees, and temperature
一度 (ichido), 二度 (nido), 三度 (sando)
番 (ban)
numbers, order, turns, and rankings
一番 (ichiban), 二番 (niban), 三番 (sanban)
件 (ken)
cases, matters, incidents, requests, or items of business
一件 (ikken), 二件 (niken), 三件 (sanken)
Documents, Messages, and Creative Works
letters, emails, notices, and formal documents
一通 (ittsū), 二通 (nitsū), 三通 (santsū)
曲 (kyoku)
songs and musical pieces
一曲 (ikkyoku), 二曲 (nikyoku), 三曲 (sankyoku)
話 (wa)
episodes, stories, or installments
第一話 (dai-ichiwa), 第二話 (dai-niwa)
作 (saku)
creative works or productions
Time, Floors, Age, and Money
clock hours: 一時 (ichiji), 四時 (yoji), 七時 (shichiji)
分 (fun / pun)
minutes: 一分 (ippun), 三分 (sanpun), 五分 (gofun)
階 (kai / gai)
floors of a building: 一階 (ikkai), 三階 (sankai / sangai)
歳 (sai)
years of age: 一歳 (issai), 八歳 (hassai), 二十歳 (hatachi)
円 (en)
Japanese yen: 百円 (hyaku-en), 千円 (sen-en)
As a learner, begin with the counters you actually need and expand gradually.
Why Do Japanese Counter Pronunciations Change?
Some counters keep the same pronunciation after every number. Others change because sounds influence one another.
枚 (mai), 台 (dai), 個 (ko), 回 (kai), 冊 (satsu)
Some number forms may shorten, but the counter’s initial sound does not alternate among h, p, and b.
H-row counters with major alternation
本 (hon), 匹 (hiki), 杯 (hai)
Their first sound may become p or b.
For the hon / hiki / hai pattern, a useful beginner rule is:
ippon, roppon, happon, juppon
ippiki, roppiki, happiki, juppiki
ippai, roppai, happai, juppai
3 → b sound
sanbon, sanbiki, sanbai
2, 4, 5, 7, 9 → h sound
nihon, yonhon, gohon, nanahon, kyūhon
Always confirm the pronunciation when learning a new counter rather than forcing one rule onto all of them.
The Number 4 and 7 in Japanese Counters
Japanese normally uses yon rather than shi with many counters:
四枚 — yonmai
四本 — yonhon
四匹 — yonhiki
四冊 — yonsatsu
For 7, many counters use nana:
七枚 — nanamai
七本 — nanahon
七匹 — nanahiki
七冊 — nanasatsu
For example, July is shichigatsu, seven o’clock is shichiji, and four o’clock is yoji.
Common Beginner Mistakes with Japanese Counters
Mistake 1: Using the Bare Number Before Every Noun
○ enpitsu sanbon
three pencils
Mistake 2: Pronouncing Every 本 as Hon
○ ippon
× sanhon
○ sanbon
× rokuhon
○ roppon
Mistake 3: Adding a Particle Immediately After the Counter
In the standard quantity pattern, the number-counter phrase functions adverbially before the verb.
I bought three apples.
× りんごを三個を買いました。
Mistake 4: Using Mai for a Book
○ 本を二冊 (hon o nisatsu)
two books
Mistake 5: Confusing 本 the Noun with 本 the Counter
book
一本 (ippon)
one long object
一冊の本 (issatsu no hon)
one book
Mistake 6: Trying to Learn Every Counter at Once
Start with the counters that match your daily needs. For most beginners, the following group offers excellent coverage:
個 — individual objects
枚 — flat objects
本 — long objects
人 — people
匹 — small animals
冊 — books
台 — machines and vehicles
杯 — cups and glasses
回 — number of times
Natural Example Sentences with Japanese Counters
りんごを四個買いました。
Ringo o yonko kaimashita.
I bought four apples.
紙を六枚使いました。
Kami o rokumai tsukaimashita.
I used six sheets of paper.
鉛筆を八本ください。
Enpitsu o happon kudasai.
Please give me eight pencils.
家族は四人です。
Kazoku wa yonin desu.
There are four people in my family.
猫を三匹飼っています。
Neko o sanbiki katte imasu.
I have three cats.
本を二冊読みました。
Hon o nisatsu yomimashita.
I read two books.
車が一台あります。
Kuruma ga ichidai arimasu.
There is one car.
コーヒーを二杯飲みました。
Kōhī o nihai nomimashita.
I drank two cups of coffee.
この映画を三回見ました。
Kono eiga o sankai mimashita.
I watched this movie three times.
シャツを五枚買いました。
Shatsu o gomai kaimashita.
I bought five shirts.
傘を何本持っていますか。
Kasa o nanbon motte imasu ka.
How many umbrellas do you have?
チケットは何枚必要ですか。
Chiketto wa nanmai hitsuyō desu ka.
How many tickets do you need?
卵を何個使いますか。
Tamago o nanko tsukaimasu ka.
How many eggs will you use?
メールを三通送りました。
Mēru o santsū okurimashita.
I sent three emails.
靴を二足買いました。
Kutsu o nisoku kaimashita.
I bought two pairs of shoes.
Mini Quiz: Which Japanese Counter Should You Use?
A. sanmai
B. sanbon
C. sanko
2. Two tickets
A. nimai
B. nihon
C. niko
3. Six eggs
A. rokumai
B. roppon
C. rokko
4. One book
A. ippon
B. issatsu
C. ichimai
5. Three cats
A. sanbiki
B. sanbon
C. sandai
Pencils are long, tickets are flat, eggs are individual objects, books use satsu, and small animals use hiki / piki / biki.
FAQ About Japanese Counter Words
What are Japanese counter words?
Japanese counter words, called 助数詞 (josūshi), follow numbers and classify what is being counted according to its shape, type, function, or conventional category.
What is the basic Japanese quantity pattern?
The basic structure is number + counter. In a sentence, a common word order is thing + particle + number-counter + verb, as in りんごを三個買いました.
What does the ko counter count?
個 (ko) counts many separate or relatively small objects, such as apples, eggs, balls, watches, and small boxes.
What does the mai counter count?
枚 (mai) counts thin and flat objects, including paper, tickets, photographs, plates, shirts, cards, and CDs.
What does the hon counter count?
本 (hon) counts long, narrow, cylindrical, or line-like objects, including pencils, bottles, umbrellas, bananas, candles, and trees.
Why does hon change to pon and bon?
The initial H sound changes according to the preceding number. Use pon after 1, 6, 8, and 10; bon after 3 and in nanbon; and hon after 2, 4, 5, 7, and 9.
How do you say one long object in Japanese?
One long object is 一本 (ippon), not ichihon.
How do you say three long objects in Japanese?
Three long objects is 三本 (sanbon), not sanhon.
How do you ask how many long objects there are?
Use 何本 (nanbon).
What counter should beginners use when they do not know the correct one?
For many non-human objects, the native ～つ system is a useful fallback from one to ten. 個 is also useful for many individual objects and works above ten, but neither replaces every specialized counter.
Can the same object use different counters?
Yes. The counter may change depending on form or focus. For example, water can be counted by bottles with 本, cups with 杯, or drops with 滴.
How many Japanese counters should a beginner memorize?
Begin with the counters you use most: ～つ, 個, 枚, 本, 人, 匹, 冊, 台, 杯, and 回. Add more counters as they appear in real conversations and reading.
Summary: Japanese Counters Explained
The counter classifies the item by shape, type, or conventional category.
● Ko counts individual objects
Examples: ikko, sanko, rokko, nanko.
● Mai counts flat objects
Examples: ichimai, sanmai, hachimai, nanmai.
● Hon counts long objects
Examples: ippon, nihon, sanbon, roppon, nanbon.
● Counter pronunciation may change
Especially with H-row counters such as hon, hiki, and hai.
● Quantity usually follows the noun and particle
鉛筆を三本買いました。
● Learn counters in useful groups
Start with general objects, flat objects, long objects, people, animals, books, machines, drinks, and frequency.
Start with ko, mai, and hon, say the pronunciation charts aloud, and add each new counter together with a real noun you use!
Next: Learn How to Count in Japanese
References
- The Japan Foundation, Minna no Kyōzai: Counter Reference — lists counters, categories, and 1–10 readings for ～つ, 個, 枚, 本, 冊, 台, 杯, 人, 匹, 階, 回, 歳, and others.
- The Japan Foundation, Minna no Kyōzai: Counter Grammar Explanation — explains number + counter structure, counter selection, word order, questions, and pronunciation changes.
- National Institute for Japanese Language and Linguistics: Why 匹 Is Read Hiki, Biki, and Piki — explains Japanese counters, H-row sound alternation, and the historical background of p, h, and b forms.
- Kanjipedia: 個 — defines 個 as a word used to count objects.
- Kanjipedia: 枚 — defines 枚 as a counter for thin, flat things such as paper and boards.
- Kanjipedia: 本 — includes the counter use of 本 for rods, films, communications, matches, and related items.
- Kanjipedia: 冊 — defines 冊 as a counter for books.
- Kanjipedia: 杯 — defines 杯 as a counter for the contents of containers and certain other objects.