Japanese Numbers Kanji: How to Read and Write Japanese Numerals

Learning to read and write Japanese numbers in kanji might seem intimidating at first, but here's the thing: the system is actually way more logical than you'd expect. Once you get the basic building blocks down, you can construct pretty much any number you need. Whether you're reading prices at a store, understanding dates, or just working through your textbook exercises, knowing how kanji numbers work is super practical. Let's break down everything you need to know about Japanese numbers, from the basics to the bigger picture.

Understanding Japanese numbers and kanji

Japanese uses three different writing systems, and numbers are no exception. You'll see Arabic numerals (1, 2, 3) everywhere in modern Japan, especially in digital contexts and casual writing. But kanji numbers still show up constantly in formal documents, traditional settings, price tags, and pretty much any situation where you want to look official or traditional.

The kanji number system comes from Chinese, which is why these readings are called Sino-Japanese or on'yomi readings. There's also a native Japanese counting system (wago), but the kanji-based system dominates for general number use.

Numbers 1 to 10 in kanji

Here's where everything starts. These ten kanji are your foundation for the entire number system.

The kanji for one through ten:

Notice that 4, 7, and 9 have alternative readings. The reason comes down to superstition and clarity. sounds like the word for death (), so often gets used instead. Similarly, can sound too close to in some contexts, so provides clarity. For 9, both and are common, with being more standard in most counting situations.

Stroke order of how Japanese people write kanji numbers

Getting the stroke order right matters more than you might think. It helps with muscle memory and makes your handwriting look natural to native readers.

Practice these until they feel automatic. The first ten kanji will appear in every larger number you write.

Counting in Japanese from 11 to 99

Once you've got 1-10 down, the teens and larger numbers follow a logical pattern. Japanese builds numbers by combining the basic numerals.

For 11-19, you use (10) plus the single digit:

For multiples of ten, you put the multiplier before :

Combining tens and ones works exactly how you'd expect:

This building-block approach continues for larger numbers too.

Hundreds, thousands, and larger numbers

The pattern keeps going with some new kanji for larger place values.

For hundreds, you use :

Notice the pronunciation variations? This is where Japanese gets a bit quirky. At 300, becomes . At 600, it becomes . And at 800, you get with a doubled consonant. These sound changes make the numbers flow better when spoken.

For thousands, the kanji is :

Again, watch for sound changes. 3,000 becomes , and 8,000 becomes .

For ten thousand, Japanese uses instead of saying "ten thousand." This is a key difference from English:

A full example: 23,456 would be (2 × 10,000 + 3 × 1,000 + 4 × 100 + 5 × 10 + 6).

Pronunciation variations and sound changes when counting Japanese numbers

Japanese loves euphony, which means sounds that flow nicely together. The number system has several predictable sound changes you need to memorize.

For hundreds:

For thousands:

These changes happen automatically in speech. If you say instead of , native speakers will know what you mean, but it'll sound off.

Wago vs kango readings in Japanese number system

Here's where things get a bit more complex. Japanese has two main counting systems: the native Japanese (wago or yamato kotoba) and the Sino-Japanese (kango) system.

The kanji numbers we've been discussing use kango readings. These come from Chinese and work for general counting, math, years, addresses, and most everyday situations.

But Japanese also has native number words:

These wago numbers get used for counting generic objects, ages of young children, and in certain traditional contexts. You'll also hear them when someone's counting things without a specific counter word.

The kanji can be the same, but the reading changes based on context. When you see in (30), you read it as "san." But in つ, the same kanji reads as "mittsu."

Most of the time, you'll use the kango system for actual number notation and arithmetic. The wago system shows up more in spoken contexts.

What Japanese numbers kanjis you'll actually use

In practical terms, you'll encounter the basic kanji for 1-10, plus (hundred), (thousand), and (ten thousand) constantly.

Larger units like (100 million) and (trillion) exist, but you'll see them mostly in news articles about economics, population statistics, or national budgets, when practicing Japanese reading. For everyday life, getting comfortable up to covers most situations.

Dates in the Japanese language use number kanji heavily. Years, months, and days all get written with these characters in formal contexts. For example, January 15, 2026 could be written as .

Prices in traditional shops, especially for expensive items, often display kanji numbers. You might see (5,000 yen) on a price tag.

Getting comfortable with numbers in Japanese

The best way to internalize this system? Practice reading real-world examples.

Anyway, if you want to practice reading Japanese numbers in real content, Migaku's browser extension and app let you look up kanji instantly while browsing Japanese websites or watching videos. Makes learning from authentic materials way more practical. There's a 10-day free trial if you want to check it out.

Learning Japanese numerals and starting from 1 – 10

These ten kanji form the basis of the entire system. You can't read prices, dates, addresses, or pretty much anything numerical in Japanese without them. They're also among the first kanji taught in Japanese elementary schools because they're so fundamental. Plus, these kanji show up in tons of compound words beyond just numbers. appears in words like (together), in (two people), and so on, making them high-frequency words that you can encounter often in media content.

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