Basic Counters in Japanese

Overview

One of the most distinctive features of Japanese is its system of counter words (助数詞, josushi). When you count things in Japanese, you cannot simply put a number before a noun. Instead, you must use the appropriate counter word based on the shape, size, or category of what you are counting. This is somewhat like English "two sheets of paper" or "three cups of coffee," but in Japanese, counters are required for virtually everything.

At the CEFR A1 level, you need to know six to eight essential counters that cover the most common everyday situations: counting people, small objects, flat things, long things, small animals, and books. While Japanese has hundreds of counters, these core ones will handle the vast majority of situations you encounter.

The good news is that the つ counter (ひとつ, ふたつ...) from the native Japanese number system works as a universal fallback for most objects. If you forget the specific counter, using つ is almost always acceptable and understood.

How It Works

Essential Counters

Counter	Kanji	Use	Example
人 (にん/り)	人	People	三人 (sannin) -- 3 people
個 (こ)	個	Small round/compact objects	五個 (goko) -- 5 pieces
枚 (まい)	枚	Flat objects (paper, shirts, plates)	二枚 (nimai) -- 2 sheets
本 (ほん)	本	Long/cylindrical objects (pens, bottles, trees)	三本 (sanbon) -- 3 sticks
匹 (ひき)	匹	Small/medium animals	二匹 (nihiki) -- 2 animals
冊 (さつ)	冊	Books, magazines, notebooks	四冊 (yonsatsu) -- 4 books
台 (だい)	台	Machines, vehicles	一台 (ichidai) -- 1 vehicle
杯 (はい)	杯	Cups, glasses, bowls of liquid	二杯 (nihai) -- 2 cups

Counting People (人)

People counting has irregular readings:

Number	Reading	Note
1 person	ひとり (hitori)	Irregular
2 people	ふたり (futari)	Irregular
3 people	さんにん (sannin)	Regular from here
4 people	よにん (yonin)	Uses よ, not し
5 people	ごにん (gonin)
6 people	ろくにん (rokunin)
7 people	ななにん/しちにん (nananin/shichinin)
8 people	はちにん (hachinin)
9 people	きゅうにん (kyuunin)
10 people	じゅうにん (juunin)

Sound Changes (本, 匹, 杯)

Some counters change pronunciation depending on the number:

Number	本 (hon)	匹 (hiki)	杯 (hai)
1	いっぽん (ippon)	いっぴき (ippiki)	いっぱい (ippai)
2	にほん (nihon)	にひき (nihiki)	にはい (nihai)
3	さんぼん (sanbon)	さんびき (sanbiki)	さんばい (sanbai)
4	よんほん (yonhon)	よんひき (yonhiki)	よんはい (yonhai)
5	ごほん (gohon)	ごひき (gohiki)	ごはい (gohai)
6	ろっぽん (roppon)	ろっぴき (roppiki)	ろっぱい (roppai)
7	ななほん (nanahon)	ななひき (nanahiki)	ななはい (nanahai)
8	はっぽん (happon)	はっぴき (happiki)	はっぱい (happai)
9	きゅうほん (kyuuhon)	きゅうひき (kyuuhiki)	きゅうはい (kyuuhai)
10	じゅっぽん (juppon)	じゅっぴき (juppiki)	じゅっぱい (juppai)

Word Order with Counters

Counters usually come after the noun + particle, or directly before the verb:

• りんごを三つください。(ringo o mittsu kudasai) -- Three apples, please.
• 三つのりんご (mittsu no ringo) -- three apples (counter before noun with の)
• 学生が三人います。(gakusei ga sannin imasu) -- There are three students.

Examples in Context

Japanese	English	Note
三人の学生	three students (sannin no gakusei)	人 for people
りんごを五個買いました。	I bought five apples. (goko)	個 for round objects
紙を二枚ください。	Two sheets of paper, please. (nimai)	枚 for flat things
鉛筆が三本あります。	There are three pencils. (sanbon)	本 for long things
猫が二匹います。	There are two cats. (nihiki)	匹 for small animals
本を四冊読みました。	I read four books. (yonsatsu)	冊 for books
コーヒーを一杯ください。	One coffee, please. (ippai)	杯 for cups
車が一台あります。	There is one car. (ichidai)	台 for vehicles
友達がひとりいます。	I have one friend. (hitori)	Irregular people counter
ペンを三本持っています。	I have three pens. (sanbon)	本 for pens

Common Mistakes

Forgetting sound changes

• Wrong: いちほん, さんひき
• Right: いっぽん (ippon), さんびき (sanbiki)
• Why: Counters starting with h (本, 匹, 杯) undergo consonant changes after certain numbers (1, 3, 6, 8, 10). These must be memorized.

Using the wrong counter category

• Wrong: 紙を三本ください (using 本 for paper)
• Right: 紙を三枚ください (using 枚 for flat things)
• Why: Paper is flat, so it uses 枚. 本 is for long, cylindrical objects. Using the wrong counter can cause confusion.

Forgetting irregular people counting

• Wrong: いちにん, ににん
• Right: ひとり (hitori), ふたり (futari)
• Why: One and two people use the native Japanese readings, not the Sino-Japanese いち/に. From three onward, it is regular: さんにん, よにん, etc.

Putting the counter in the wrong position

• Wrong: 三つりんごをください。
• Right: りんごを三つください。 or 三つのりんごをください。
• Why: The counter typically goes after the noun + particle, or before the noun with の connecting them.

Practice Tips

• Start with just three counters. Master つ (general), 人 (people), and 枚 (flat things) first. Add 本, 匹, and 冊 once those feel comfortable. Trying to learn all counters at once leads to confusion.

• Practice with real objects. Count items in your room: 本を三冊 (three books), ペンを二本 (two pens), 写真を五枚 (five photos). Physical association helps retention.

• When in doubt, use つ. The native counter (ひとつ, ふたつ...) works for most objects up to 10. It is better to use つ correctly than to use the wrong specific counter.

Related Concepts

• Prerequisite: Numbers and Counting -- you need to know the number systems before learning counters