Learning the numbers in Japanese is one of the fastest wins for any new learner. Within a single study session you can count from one to ten, and within a week you can handle prices, phone numbers, dates, and ages. Because Japanese counting follows a clean, logical pattern, it rewards you almost immediately — unlike some grammar points that take months to click.
In this guide you’ll learn how to count in Japanese from 0 to 100 and beyond, how to read the kanji, why some numbers have two readings, and how counters change the words you use. We’ll finish with practical examples, a pronunciation cheat sheet, and a short FAQ so you can start using Japanese numbers in real conversations today.
Why Japanese Numbers Are Easier Than You Think
Japanese has two number systems: the native Japanese (Wago) set used for small quantities, and the Sino-Japanese (Kango) set borrowed from Chinese, which is used for most counting, math, money, and dates. The good news is that the Sino-Japanese system is remarkably regular.
Once you know 1 through 10, you can build almost every number up to 99 by combining them. There is no separate word for “eleven” or “twenty” the way English has irregular forms. Instead, 11 is literally “ten-one” and 20 is “two-ten.” This building-block logic is the single biggest reason beginners progress quickly.
Numbers 1 to 10 in Japanese
Start here. These ten words are the foundation for everything else. Note that several numbers have more than one reading — most commonly 4, 7, and 9 — and choosing the “safe” reading helps you avoid a cultural pitfall we’ll cover below.
| Number | Kanji | Hiragana | Romaji (reading) |
|---|---|---|---|
| 0 | 零 / 〇 | れい / ゼロ | rei / zero |
| 1 | 一 | いち | ichi |
| 2 | 二 | に | ni |
| 3 | 三 | さん | san |
| 4 | 四 | よん / し | yon / shi |
| 5 | 五 | ご | go |
| 6 | 六 | ろく | roku |
| 7 | 七 | なな / しち | nana / shichi |
| 8 | 八 | はち | hachi |
| 9 | 九 | きゅう / く | kyū / ku |
| 10 | 十 | じゅう | jū |
Pro tip from the classroom: when you’re a beginner, default to yon (4), nana (7), and kyū (9). These native and clearer readings are the ones you’ll hear most often in daily counting, and they help you sidestep confusion between shichi (7) and ichi (1) over a noisy phone line.
Counting From 11 to 100
Here’s where the logic pays off. To build the tens, you say the multiplier plus “ten.” To build numbers in between, you add the ones digit after “ten.” A few worked examples:
- 11 = 十一 (jū-ichi) → “ten-one”
- 20 = 二十 (ni-jū) → “two-ten”
- 34 = 三十四 (san-jū-yon) → “three-ten-four”
- 99 = 九十九 (kyū-jū-kyū) → “nine-ten-nine”
The pattern never breaks between 11 and 99, so if you can count to ten, you already have the tools for a hundred numbers. Below is a quick reference for the tens.
| Number | Kanji | Reading |
|---|---|---|
| 10 | 十 | jū |
| 20 | 二十 | ni-jū |
| 30 | 三十 | san-jū |
| 40 | 四十 | yon-jū |
| 50 | 五十 | go-jū |
| 60 | 六十 | roku-jū |
| 70 | 七十 | nana-jū |
| 80 | 八十 | hachi-jū |
| 90 | 九十 | kyū-jū |
| 100 | 百 | hyaku |
Big Numbers: Hundreds, Thousands, and the 10,000 Trick
Beyond 100, Japanese uses hyaku (100, 百), sen (1,000, 千), and man (10,000, 万). The crucial thing English speakers must rewire is that Japanese groups large numbers by ten-thousands, not thousands. So 100,000 isn’t “hundred-thousand” — it’s jū-man (十万), literally “ten ten-thousands.”
Watch for a few sound changes (called rendaku and euphonic shifts) that make pronunciation smoother:
- 300 = 三百 (san-byaku, not “san-hyaku”)
- 600 = 六百 (roppyaku)
- 800 = 八百 (happyaku)
- 3,000 = 三千 (san-zen)
- 1,000,000 = 百万 (hyaku-man, “hundred ten-thousands”)
This is exactly why prices on a Japanese menu or a rent listing can look intimidating at first. A monthly salary of ¥250,000 is read ni-jū-go-man en — “twenty-five ten-thousands yen.” Once the ten-thousand unit clicks, reading money becomes second nature.
Counters: The Part Textbooks Rush
Here’s the twist that surprises learners: in Japanese you rarely say a number by itself when counting objects. You attach a counter word that matches the shape or type of thing. It’s a little like English “two sheets of paper” or “three head of cattle,” except Japanese uses counters for almost everything.
| Counter | Used for | Example |
|---|---|---|
| 〜つ (-tsu) | General objects (native numbers 1–9) | みっつ (three things) |
| 〜人 (-nin) | People | さんにん (three people) |
| 〜本 (-hon) | Long, cylindrical things | にほん (two bottles/pens) |
| 〜枚 (-mai) | Flat, thin things | ごまい (five sheets) |
| 〜個 (-ko) | Small, round objects | よんこ (four items) |
Don’t try to memorize every counter at once. Learn -tsu for general objects and -nin for people first; those two cover a huge share of everyday situations. Add the others as you meet them in real sentences.
The Number 4, 9, and Japanese Superstition
One original insight that pays off in real life: the numbers 4 and 9 carry cultural weight. The reading shi (4) sounds like the word for “death” (死), and ku (9) can sound like “suffering” (苦). For this reason, hospitals and hotels in Japan sometimes skip room or floor number 4, and gift sets rarely come in fours. Knowing this is the kind of first-hand cultural detail that marks you as a thoughtful learner rather than a textbook parrot. It’s also why the safer yon and kyū readings dominate spoken counting.
How to Practice Numbers in Japanese
- Count out loud daily — say your phone number, the time, and prices as you go about your day.
- Shadow native audio — repeat immediately after a speaker to lock in pitch and rhythm.
- Label your home — sticky notes with counters (three books = 三冊) train counter reflexes.
- Practice money — read Japanese price tags online to internalize the ten-thousand unit.
For deeper study, the Japan Foundation and the official JLPT resources offer reliable, exam-aligned material that reinforces exactly these fundamentals.
Frequently Asked Questions
Do I need to learn kanji to use Japanese numbers?
Not at first. You can speak and understand numbers using hiragana and romaji. However, learning the ten core kanji (一 through 十, plus 百, 千, 万) is a fast, high-value step because you’ll see them on menus, receipts, and signs everywhere.
Why does 4 have two readings, yon and shi?
Both are correct, but yon (native Japanese) is preferred in most spoken counting because shi sounds like the word for “death.” Use yon and nana and kyū as your defaults, and you’ll rarely go wrong.
How are phone numbers said in Japanese?
Digit by digit, usually with zero for 0. The hyphen is read as no. So 03-1234-5678 becomes “zero-san no ichi-ni-san-yon no go-roku-nana-hachi.”
What’s the hardest part of Japanese numbers for English speakers?
The ten-thousand grouping (man). English brains reach for “thousands,” so 100,000 as “ten ten-thousands” feels backward. Practicing prices in yen is the fastest cure.
Start Counting With Confidence
The numbers in Japanese are a rare beginner topic that is both genuinely useful and genuinely learnable in a short time. Master 1 to 10, apply the building-block pattern, respect the counters, and you’ll be handling dates, prices, and phone numbers with ease. Ready to practice out loud with real feedback? Book a Japanese tutor with The Cognitio and turn these charts into confident, natural conversation.