GrammarN57 min read2026-02-13

百, 千, 万 — Big Numbers and 'いくらですか'

Count from 100 to a hundred million, then learn to ask prices. Essential reading before shopping in Japan.

Last time we covered 1 through 99. Now let's complete the picture with hundreds, thousands, ten-thousands, and even hundreds of millions. Then we'll learn いくらですか (How much?), so you can shop in Japan with confidence.

百: 100–999

(ひゃく) means 100. Important: Japanese does not add "one" before it — just say ひゃく, not いちひゃく.

NumberJapaneseReadingNotes
100ひゃくno "one" prefix
200二百にひゃく
300三百さんびゃくvoiced (゛)
400四百よんひゃく
500五百ごひゃく
600六百ろっぴゃくsemi-voiced (゜)
700七百ななひゃく
800八百はっぴゃくsemi-voiced (゜)
900九百きゅうひゃく

The pattern: 300 gets voiced (びゃく), while 600 and 800 get semi-voiced (ぴゃく). Memory trick: 3 gets dakuten, 6 and 8 get handakuten.

千: 1,000–9,999

(せん) means 1,000. Again, no "one" prefix — just say せん.

NumberJapaneseReadingNotes
1,000せんno "one" prefix
2,000二千にせん
3,000三千さんぜんvoiced (゛)
4,000四千よんせん
5,000五千ごせん
6,000六千ろくせん
7,000七千ななせん
8,000八千はっせんdouble consonant
9,000九千きゅうせん

Only one sound change for thousands: 3,000 gets voiced (さんぜん). 8,000 has a double consonant (はっせん).

Combining:

  • 1,200 → 千二百 (せんにひゃく)
  • 3,500 → 三千五百 (さんぜんごひゃく)
  • 9,200 → 九千二百 (きゅうせんにひゃく)

万 and 億

(まん) = 10,000. Unlike 百 and 千, 万 requires "one" — say 一万 (いちまん).

NumberJapaneseReading
10,000一万いちまん
20,000二万にまん
50,000五万ごまん
100,000十万じゅうまん
1,000,000百万ひゃくまん
10,000,000千万せんまん

(おく) = 100,000,000. Also requires "one":

NumberJapaneseReading
100 million一億いちおく
200 million二億におく
300 million三億さんおく

One hundred million yen is roughly 700,000 USD. Japan's largest bill is 10,000 yen — so 10 million yen is just one bundle, and 100 million fits in a sports bag.

いくらですか: "How Much?"

いくら is the question word for price, used in the は〜ですか pattern:

A はいくらですか。 → How much is A?

JapaneseEnglish
このかばんはいくらですか。How much is this bag?
このカメラはいくらですか。How much is this camera?

Answer with "number + (えん) + です":

五百円です。 → It's 500 yen. 四千円です。 → It's 4,000 yen.

A Complete Shopping Conversation

Customer: すみません、この椅子はいくらですか。 → Excuse me, how much is this chair?

Staff: 五百円です。 → It's 500 yen.

Customer: この机はいくらですか。 → How about this desk?

Staff: 四千円です。 → It's 4,000 yen.

Customer: じゃあ、椅子と机をください。 → Then I'll take the chair and the desk, please.

Here, 〜をください means "please give me ~." connects two nouns, meaning "and."

Currency Words

CurrencyJapaneseReading
Yenえん
Taiwan dollar台湾元たいわんげん
US dollarドルドル

Japan's consumption tax is currently a mix of 8% (takeout) and 10% (dine-in). Prices are usually listed before tax. Foreign tourists can get tax-free shopping at drugstores and other qualifying shops.

Summary

  • (ひゃく) and (せん) don't take "one"; (まん) and (おく) do
  • Sound changes for 百: 3 voiced (びゃく), 6 and 8 semi-voiced (ぴゃく)
  • Sound changes for 千: 3 voiced (ぜん), 8 double consonant (はっせん)
  • Ask for prices: 〜はいくらですか → How much?
  • Answer: number + 円です
  • Buying: 〜をください → Please give me ~

Practice Questions

Q1. Say "3,600 yen" in Japanese.

Show Answer

三千六百円 (さんぜんろっぴゃくえん)

3,000 = さんぜん (voiced), 600 = ろっぴゃく (semi-voiced), plus 円 (えん).

Q2. What does 「このカメラはいくらですか。」 mean?

Show Answer

How much is this camera?

この (this) + カメラ (camera) は + いくら (how much) + ですか (is it?).

Q3. You want to buy a 5,000-yen bag at a department store. How do you say "Please give me this bag" in Japanese?

Show Answer

このかばんをください。

この (this) + かばん (bag) + を + ください (please give me). Add すみません at the beginning for extra politeness.

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