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Grammar detail: Japanese numbers and counting
My current mastery of this grammar:
One to ten
| 1 | 一 | いち |
| 2 | 二 | に |
| 3 | 三 | さん |
| 4 | 四 | し／よん |
| 5 | 五 | ご |
| 6 | 六 | ろく |
| 7 | 七 | しち／なな |
| 8 | 八 | はち |
| 9 | 九 | きゅう |
| 10 | 十 | じゅう |
Ten to ninety-nine
Past ten, Japanese is completely regular, so counting is as simple as putting the number of tens with the number of ones. So for example:
- 57 = 五十七 (ごじゅうなな) = five tens + seven
- 99 = 九十九 (きゅうじゅうきゅう) = nine tens + nine
- 44 = 四十四 (よんじゅうよん) = four tens + four
One hundred to ten thousand
From 100 to 10000, Japanese largely mirrors English: the Japanese terms for 100 and 1000 are used and combined in the same way.
| 100 | 百 | ひゃく | 213 ➜ 二百十三 (にひゃくじゅうさん) |
| 1000 | 千 | せん | 3406 ➜ 三千四百六 (さんぜんよんひゃくろく) |
Above ten thousand
Unlike the Western system, which counts in multiples of a thousand, Japanese counts in multiples of 10,000, so numbers larger than 10,000 take a bit of thought to 'convert' from the Western system to Japanese.
| 10,000 = 10^4 | 万 | まん | 12000 ➜ 10000 + 2x1000 ➜ 一万二千 (いちまんにせん) |
| 10,000 x 10,000 = 100,000,000 = 10^8 | 億 | おく | 105 million ➜ 1 x 100 million + 500 x 10,000 ➜ 一億五百万 (いちおくごひゃくまん) |
| 10,000 x 10,000 x 10,000 = 1000,000,000,000 = 10^12 | 兆 | ちょう | 1 trillion ➜ 1 million x 1 million ➜ 一兆 (いっちょう) |
Generic counting
| 1 | 一つ | ひとつ |
| 2 | 二つ | ふたつ |
| 3 | 三つ | みっつ |
| 4 | 四つ | よっつ |
| 5 | 五つ | いつつ |
| 6 | 六つ | むっつ |
| 7 | 七つ | ななつ |
| 8 | 八つ | やっつ |
| 9 | 九つ | ここのつ |
Counters for objects and other things
For counting actual objects as opposed to just expressing a number, Japanese uses a unique system of 'counters', terms which are placed after the number and which partially describe the object being counted.
While this seems unusual at first, and is often touted as a difficult feature of Japanese, we are actually doing exactly the same thing in English (five sheets of paper), but English is much less regular than Japanese.
Japanese has many counters, and the most common ones are:
| 枚 | まい | flat objects such as paper or books | |
| 本 | ほん | cylindrical or long objects such as bottles or chopsticks (note: this is a little confusing, since ほん means 'book' - it is *not* used to count books) | |
| 冊 | さつ | books | |
| 人 | じん | people | |
| 匹 | ひき | small animals | |
| 回 | かい | number of times something happens | |
| 個 | こ | small round objects | |
| 箇所／ヶ所 | かしょ | places | |
| 羽 | わ | birds | |
| 歳 | さい | years old / age (note that '20 years old' is irregular: 二十歳 is not read にじゅっさい as you would expect, but instead はたち) | |
| 才| | さい | years old (note: this is commonly used, but not technically correct: 歳 is the correct counter) | |
| 畳 | じょう | tatami mats (the typical way to measure the area of a room) | |
| 台 | だい | cars and machines | |
| 名 | めい | people (polite alternative to 人, used by businesses and restaurants etc.) | |
| 語 | ご | words | |
| カ国語 | かこくご | languages | |
| か月 | かげつ | months | |
| 軒 | けん | buildings | |
| 通 | つう | letters, telegrams etc | |
| 行 | ぎょう | rows (in a document etc) | |
| 番 | ばん | platforms (in a railway station etc) | |
| 階 | かい | floors (in a building) | |
| 便 | びん | (plane) flights | |
| 札 | さつ | banknotes | |
| 脚 | きゃく | chairs, tables, legs (of chairs and tables etc) | |
| 項 | こう | items (in a checklist); paragraphs | |
| 泊 | はく | nights (eg of a stay in a hotel) | |
| 世 | せい | generations; monarchs (Elizabeth I etc) | |
| 頭 | とう | large animals, cattle | |
| 巻 | かん | volumes (eg books); reels (eg film) | |
| 部 | ぶ | copies (eg of a publication) | |
| 切れ | きれ | pieces of sashimi (literally 'cuts') | ひときれ、 ふたきれ、 みきれ、 よきれ、 ごきれ、 ろっきれ、 ななきれ、 はちきれ、 きゅうきれ、 じっきれ |
| 着 | ちゃく | suits of clothing | |
| 足 | そく | pairs of shoes etc. | |
| 割 | わり | tenths; lots of 10% | |
| 児 | じ | children | |
| 粒 | つぶ | pills, tablets etc |
Order
The order of objects can be expressed using the form:
number + counter + 目 (め)
For example:
- 三つ目 (みっつめ) third (generic object)
- 九人目 (きゅうにんめ) ninth person
- 二回目 (にかいめ) second time
See also:
- 七 and 四 - how to read the kanji for seven and four
- the character ヶ
- Counters for objects and other things
More information / references:
- https://www.trussel.com/jcount.htm ⇗
Kanji used in this grammar
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