Learn Numbers In Japanese From 1

Learning to count in Japanese is one of the first and most rewarding steps you can take in your language journey. Unlike English, where numbers follow a relatively simple pattern after twelve, Japanese uses two distinct sets of numbers: the native Japanese (Wago) system and the Sino-Japanese (Kango) system. For counting from 1 to 100, you will primarily rely on the Sino-Japanese system, which is based on Chinese numerals. Once you understand the core rules, you will be able to count much higher with ease.

This guide will walk you through the numbers from 1 to 100 step by step. We will break down the tricky pronunciation changes, give you clear examples, and provide a simple table for quick reference. Whether you are preparing for a trip to Tokyo, studying for an exam, or just exploring a new language, mastering these numbers will build your confidence and help you handle everyday situations like shopping, telling time, and asking for prices.

Let’s start with the basics. Japanese numbers are logical. Once you learn 1 through 10, you can build the rest. The main challenge is remembering a few sound changes that happen when certain numbers combine. Do not worry—these changes follow clear rules, and we will point them out as we go.

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Numbers 1 to 10: The Foundation

These ten numbers are the building blocks for everything else. Memorize them first, and pay close attention to pronunciation.

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

You will notice that 4 and 7 have two common readings. Shi and shichi are the original Sino-Japanese readings. However, because shi also means “death,” many Japanese speakers prefer yon in everyday conversation. Similarly, nana is often used instead of shichi to avoid confusion. For numbers like 40 and 70, yonjuu and nanaju are the standard forms. Stick with yon and nana for most practical situations.

Numbers 11 to 19: Simple Addition

Once you know 10 (juu), forming 11 to 19 is straightforward. You simply say “ten” plus the unit number.

11: juu ichi (10 + 1)
12: juu ni (10 + 2)
13: juu san (10 + 3)
14: juu yon (10 + 4)
15: juu go (10 + 5)
16: juu roku (10 + 6)
17: juu nana (10 + 7)
18: juu hachi (10 + 8)
19: juu kyuu (10 + 9)

Notice that we use yon for 14 and nana for 17. This is the natural choice in modern Japanese. For 19, juu kyuu is far more common than juu ku.

Numbers 20, 30, 40 … 90: The Tens

To form the tens, you say the digit (2–9) followed by juu (10). It is like saying “two-ten” for 20.

20: ni juu (にじゅう)
30: san juu (さんじゅう)
40: yon juu (よんじゅう) – not shi juu
50: go juu (ごじゅう)
60: roku juu (ろくじゅう)
70: nana juu (ななじゅう) – not shichi juu
80: hachi juu (はちじゅう)
90: kyuu juu (きゅうじゅう)

A small pronunciation point: when roku (6) is followed by juu, it remains roku juu. However, when you say 600 (roppyaku), the sound changes. For now, simply remember roku juu for 60.

Numbers 21 to 99: The Full Pattern

To form any number between 21 and 99, you combine the tens digit with the unit digit. The pattern is: [tens] + [units].

For example:

21: ni juu ichi (20 + 1)
36: san juu roku (30 + 6)
48: yon juu hachi (40 + 8)
55: go juu go (50 + 5)
73: nana juu san (70 + 3)
99: kyuu juu kyuu (90 + 9)

There are no exceptions for numbers like 42 or 67. Once you know the tens and the units, you simply combine them. This logic continues all the way to 99.

A Handy Reference Table: 1 to 100

Use this table to quickly check any number from 1 to 100. The left column shows the tens, and the top row shows the units.

Tens Units	1 (ichi)	2 (ni)	3 (san)	4 (yon)	5 (go)	6 (roku)	7 (nana)	8 (hachi)	9 (kyuu)
0 (rei)	1 ichi	2 ni	3 san	4 yon	5 go	6 roku	7 nana	8 hachi	9 kyuu
10 (juu)	11 juu ichi	12 juu ni	13 juu san	14 juu yon	15 juu go	16 juu roku	17 juu nana	18 juu hachi	19 juu kyuu
20 (ni juu)	21 ni juu ichi	22 ni juu ni	23 ni juu san	24 ni juu yon	25 ni juu go	26 ni juu roku	27 ni juu nana	28 ni juu hachi	29 ni juu kyuu
30 (san juu)	31 san juu ichi	32 san juu ni	33 san juu san	34 san juu yon	35 san juu go	36 san juu roku	37 san juu nana	38 san juu hachi	39 san juu kyuu
40 (yon juu)	41 yon juu ichi	42 yon juu ni	43 yon juu san	44 yon juu yon	45 yon juu go	46 yon juu roku	47 yon juu nana	48 yon juu hachi	49 yon juu kyuu
50 (go juu)	51 go juu ichi	52 go juu ni	53 go juu san	54 go juu yon	55 go juu go	56 go juu roku	57 go juu nana	58 go juu hachi	59 go juu kyuu
60 (roku juu)	61 roku juu ichi	62 roku juu ni	63 roku juu san	64 roku juu yon	65 roku juu go	66 roku juu roku	67 roku juu nana	68 roku juu hachi	69 roku juu kyuu
70 (nana juu)	71 nana juu ichi	72 nana juu ni	73 nana juu san	74 nana juu yon	75 nana juu go	76 nana juu roku	77 nana juu nana	78 nana juu hachi	79 nana juu kyuu
80 (hachi juu)	81 hachi juu ichi	82 hachi juu ni	83 hachi juu san	84 hachi juu yon	85 hachi juu go	86 hachi juu roku	87 hachi juu nana	88 hachi juu hachi	89 hachi juu kyuu
90 (kyuu juu)	91 kyuu juu ichi	92 kyuu juu ni	93 kyuu juu san	94 kyuu juu yon	95 kyuu juu go	96 kyuu juu roku	97 kyuu juu nana	98 kyuu juu hachi	99 kyuu juu kyuu

For the number 100, you say hyaku (ひゃく). It is a new word, not a combination of 10 and 10. So 100 is simply hyaku.

Important Pronunciation Changes (Sound Shifts)

Japanese is a smooth, flowing language. Sometimes, when two sounds meet, they change to make pronunciation easier. Here are the most important shifts you will encounter with numbers:

600: roku + hyaku becomes roppyaku (ろっぴゃく). The “ku” drops and becomes a double “p”.
800: hachi + hyaku becomes happyaku (はっぴゃく). The “chi” drops and becomes a double “p”.
3000: san + sen becomes sanzen (さんぜん). The “s” changes to a “z” sound.
6000: roku + sen becomes rokusen (ろくせん). No change here.
8000: hachi + sen becomes hassen (はっせん). The “chi” drops to a double “s”.

For numbers 1 to 100, the only sound shift you need to worry about is inside compound words like 100 (hyaku). The tens and units themselves do not change. For example, 60 is roku juu (not roppuu). The shifts only happen when you combine a digit with a counter word like “hundred” (hyaku) or “thousand” (sen).

Practical Examples for Everyday Use

Numbers are everywhere. Here are a few common situations where you will use 1 to 100 in Japanese.

Asking for Prices

In a store, a price tag might say 580 yen. You would say: go hyaku hachi juu yen. If an item costs 45 yen, you say: yon juu go yen. Remember that yen is the same word in Japanese (えん).

Telling Time

Hours use the same numbers. For 3:00 PM, you say: san ji. For 11:45, you say: juu ichi ji yon juu go fun. The word for minute (fun) has its own pronunciation changes, but the number part stays the same.

Counting Items

Japanese uses counters for different types of objects. The number changes slightly with certain counters. For example, for counting small objects (like apples), you use the counter -ko:

1 apple: ikko (not ichi ko)
6 apples: rokko (not roku ko)
8 apples: hachiko or hakko (common variation)
10 apples: jukko (not juu ko)

Do not let this discourage you. When you are just practicing the numbers 1 to 100 on their own, stick to the basic forms we have covered. The counter changes will come naturally with more exposure.

Tips for Memorizing Numbers Quickly

Here are a few practical strategies that work well for learners.

Practice out loud every day. Say the numbers in order from 1 to 10, then 11 to 20, then 21 to 30. Repetition builds muscle memory.
Use the “shadowing” technique. Listen to a native speaker (from a language app or video) and repeat immediately after them. Focus on the rhythm and pitch.
Label things around your home. Put sticky notes on objects with their price in Japanese. For example, “120 yen” becomes hyaku ni juu yen.
Practice with a friend. Quiz each other. One person says a number in English, the other replies in Japanese. Start slow and increase speed.
Watch Japanese shopping or cooking shows. You will hear numbers constantly. Try to catch the price or the quantity without looking at subtitles.

Common Mistakes to Avoid

Beginners often make a few predictable errors. Here is what to watch out for.

Using shi for 4 in compound numbers. Avoid saying shi juu for 40. Always use yon juu. The same applies for 14 (juu yon) and 44 (yon juu yon).
Forgetting the word order. In English, we say “twenty-one.” In Japanese, it is “two ten one” (ni juu ichi). Do not reverse the order.
Skipping the tens digit for 100. 100 is not ichi juu juu. It is a special word: hyaku. However, 101 is hyaku ichi, and 110 is hyaku juu.
Mixing up 4 and 7. Practice saying yon and nana until they feel natural. Write them down side by side.

Going Beyond 100

Once you are comfortable with 1 to 100, you can easily extend your range. The next big milestone is 1000 (sen). The pattern continues: for 200, you say ni hyaku; for 300, san byaku (note the sound change); for 1000, sen; for 2000, ni sen. The logic remains consistent, and your confidence will grow quickly.

Frequently Asked Questions

1. Why are there two ways to say 4 and 7 in Japanese?

Both shi (4) and shichi (7) come from Chinese. However, shi sounds identical to the word for “death,” making it unlucky. In many contexts, Japanese speakers prefer yon (4) and nana (7) to avoid that negative connotation. For numbers like 14, 40, 17, and 70, the yon and nana forms are standard in daily life.

2. Do I need to learn the native Japanese numbers (hito, futa, mi) too?

The native Japanese counting system (hitotsu, futatsu, mitsu…) is used for counting general objects up to 10. It is very common in daily conversation, especially for small numbers. However, the Sino-Japanese system (ichi, ni, san) is used for larger numbers, dates, money, and mathematics. For learning 1 to 100, focus on the Sino-Japanese system first. You can learn the native system later.

3. Is pronunciation very important for numbers?

Yes, it matters. Japanese has a relatively small set of sounds, and mispronouncing a number can lead to confusion. For example, juu (10) and chuu (middle) are different. The double consonants in words like roppyaku (600) are essential. Take time to listen and repeat. Even a slight accent is fine, but clear pronunciation of the key sounds will help you be understood.

Learn numbers in Japanese from 1 – 100!