Counting Things in Japanese – Numbers, Counters, and How to Use Them

Numbers are everywhere, whether you're ordering sushi, telling the time, or counting how many cats you see (hello Aoshima cat island). But in Japanese, it’s not as simple as just 1, 2, 3. In Japanese, counters are the secret grammar ingredient that go with numbers — and they’re used all the time.

In this beginner-friendly guide, we’ll cover:

• How to count from 1–10 in Japanese
• What counters are and why they matter
• Common counters for people, animals, and objects
• Sound changes you need to watch for
• A quick comparison with Korean & Chinese
• Practice questions to test your skills

Let’s get into it!

1. Basic Numbers in Japanese

Here are the numbers from 1 to 10:

• 1 → いち (ichi)
• 2 → に (ni)
• 3 → さん (san)
• 4 → し / よん (shi / yon)
• 5 → ご (go)
• 6 → ろく (roku)
• 7 → しち / なな (shichi / nana)
• 8 → はち (hachi)
• 9 → く / きゅう (ku / kyuu)
• 10 → じゅう (juu)

💡 Note: し and く sound like “death” and “suffering,” so people often say よん and きゅう instead.

💡 Random Note 2: As a kid learning multiplication, 7 x 7 = 49. My dad taught it as しじゅうくるしむ (death + suffering) and it stuck.

2. What Are Counters?

In English, you’d say “three slices of bread,” not “three breads.” Japanese works the same way — but with even more counter words.

A counter is a word that goes with a number, and changes depending on what you're counting.

3. Common Counters You’ll Actually Use

Here are the most useful ones to start with:

👤 People – ～人（～にん）

• 1 person → ひとり
• 2 people → ふたり
• 3 people → さんにん
• 4 people → よにん
• 5 people → ごにん

From 3 onward, it follows a pattern (～にん). Just memorize ひとり and ふたり as exceptions.

🐱 Small Animals – ～匹（～ひき）

• 1 → いっぴき
• 2 → にひき
• 3 → さんびき
• 4 → よんひき
• 5 → ごひき

⚠️ Sound Change Alert: ひ changes to ぴ or び in some cases — that’s called euphonic change, and it’s common with counters.

Example:

猫ちゃん 何匹いますか？ → 正解 は ６匹（ろっぴき）！

(Taken at 宮城県田代島「猫島」 in Ishinomaki, where the massive tsunami hit in 2011. Go count cats and support local recovery?)

📄 Flat Things (Paper, Tickets) – ～枚（～まい）

• 1 → いちまい
• 2 → にまい
• 3 → さんまい
• 5 → ごまい

This one is simple, no sound changes to worry about!

Example:

お札 が 3枚あります = There are 3 bills (money).

🥤 Long Objects (Bottles, Pens) – ～本（～ほん）

• 1 → いっぽん
• 2 → にほん
• 3 → さんぼん
• 4 → よんほん
• 5 → ごほん

Like 匹, this one also has sound changes: ほん becomes ぽん or ぼん depending on the number.

Note: にほん sounds like Japan, no? Well, the way you put emphasis is slightly different.

• 日本 (Japan) = にほん
• 2本 (2 long things) = にほん

It's really subtle but important. えんぴつにほん can be 2 pencils, or Pencil Japan... some kind of company name. Depends on where you put the emphasis.

4. Euphonic Sound Changes: What’s Going On?

Why do you say いっぴき but にひき? It’s all about making the sounds smoother.

Here are a few patterns you’ll see a lot:

• は → ぱ or ば
• ひ → ぴ or び
• ほ → ぽ or ぼ

These changes happen with counters like 匹, 本, and 回. You’ll get used to them with practice!

Practice Time - Try It Yourself!

Can you figure these out?

• “3 bottles of water” → みずをさんぼんのみました
• “Two tickets” → チケットにまいあります
• “One cat” → ねこがいっぴきいます
• “Five people” → ごにん います

Japanese Counters vs. Korean & Chinese

If you’ve studied Korean or Mandarin, you already understand the idea of counters! But here’s how Japanese is different:

🇰🇷 Korean

• Uses counters too: 개 (things), 명 (people), 장 (flat), 마리 (animals), 자루 (long)
• Counters come after the noun (like in Japanese)
• Numbers: Sino-Korean (일, 이, 삼…)
• No sound changes (unlike Japanese!)

Example:
Japanese: ペンをにほん かいました。
Korean: 펜 두 자루 샀어요。

🇨🇳 Mandarin Chinese

• Counters are required, even with “one”
• Common ones: 个, 张, 支, 本
• Counters go between the number and the noun
• No sound shifts
• Numbers: 一, 二, 三…

Example:
Japanese: チケットをさんまいもらいました。
Chinese: 我拿了三张票。

In sum:

• All three languages use counters
• Japanese changes pronunciation depending on the number
• If you know Chinese or Korean, you’ve already got a head start!

Wrapping Up

• Japanese uses different counters depending on what you’re counting
• Numbers often change sound with certain counters (いっぴき、さんぼん)
• Just start with 3–5 useful counters and build from there

Are you ready for more counting? Learn how to tell time next!