Learn 億 through budgets, populations and distances. Read the number together with its counter.
The idea
億 has 15 strokes and is read おく. 一億 is 100,000,000; Japanese groups large numbers by ten thousand, so 一億 is 一万 times 一万. Follow the linked stroke diagram.
| Number | Reading | Value |
|---|---|---|
| 一億 | いちおく | 100,000,000 |
| 二億 | におく | 200,000,000 |
| 一億五千万 | いちおくごせんまん | 150,000,000 |
Examples
- 一億円の予算を立てました。We drew up a budget of 100 million yen.
- 人口は約二億人です。The population is about 200 million.
- この映画は三億円を稼ぎました。This film earned 300 million yen.
- 星までの距離は四億キロです。The distance to the star is 400 million kilometres.
- 一億は一万の一万倍です。One hundred million is ten thousand times ten thousand.
- 売上は一億五千万円でした。Sales were 150 million yen.
Read-aloud uses a synthetic Japanese voice available on your device. Voice quality and availability vary; it does not assess your pronunciation.
No Japanese device voice is available. You can still read the text and use the linked listening resources.
Watch out
億 is 100 million, not one million. 一億五千万 combines 100 million and 50 million; read the 万 group before attaching a counter.
Try it yourself
Write the reading of 一億 in hiragana.
Show answer or example answer
いちおく
一億 is いちおく: 一 supplies the number of units and 億 is おく.
Write the reading of 二億人 in hiragana.
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におくにん
二億人 is におくにん: 二億 is 200 million and 人 counts people.
Write 150 million in Japanese numerals.
Show answer or example answer
一億五千万
一億五千万 is 150 million: 一億 is 100 million and 五千万 is 50 million.
Practice round
Answer questions, then rebuild Japanese sentences where available. We keep your score.
Write the reading of 一億 in hiragana.
Write the reading of 二億人 in hiragana.
Write 150 million in Japanese numerals.
Tap the words in the right order.
Tap the words in the right order.
Tap the words in the right order.
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Write 億 using the stroke diagram. Cover the table, read 二億人, then express 150 million in Japanese.

