Chinese vs Japanese Characters: From Kanji to Hanzi

A Japanese speaker learning Chinese starts with a real head start in characters, and the head start comes with traps. Many kanji are written exactly like Taiwan’s Traditional characters. A large group, the post-war simplified forms called shinjitai (新字體), differ from Traditional and sometimes match Simplified. A third group differ from both. This guide sorts them, so you know what you can trust.

The short answer

• Kanji and hanzi come from the same writing system. Japan adopted Chinese characters over a thousand years ago.
• Taiwan writes Traditional characters (正體字). Japan officially simplified a set of characters after the war, leaving the rest in older forms. Mainland China simplified many more, in different ways.
• So a kanji you know will be (a) identical to the Traditional form, (b) a simplified form you must convert to Traditional, or (c) a character with no Taiwan counterpart.

Group 1: Identical to Traditional

These kanji are written the same in Japanese and in Taiwan. Mainland Simplified is different for all of them.

Traditional / Japanese	Simplified	Mandarin (Taiwan)	Meaning
愛	爱	ài	love
書	书	shū	book, write
電	电	diàn	electricity
語	语	yǔ	language
時	时	shí	time
買	买	mǎi	buy
見	见	jiàn	see
門	门	mén	gate, door
問	问	wèn	ask
開	开	kāi	open
魚	鱼	yú	fish
車	车	chē	vehicle

For these, a Japanese learner arrives with the character ready. Learning to read them in Mandarin means attaching a new sound, and sometimes a slightly changed meaning (see the false friends guide below).

Group 2: Shinjitai that differ from Traditional

Japan changed these characters. Taiwan did not. When you write Chinese in Taiwan, write the Traditional form in the left column, not the Japanese form.

Traditional (Taiwan)	Japanese	Simplified	Mandarin (Taiwan)
學	学	学	xué
國	国	国	guó
氣	気	气	qì
體	体	体	tǐ
會	会	会	huì
來	来	来	lái
賣	売	卖	mài
讀	読	读	dú
變	変	变	biàn
數	数	数	shù
圖	図	图	tú
關	関	关	guān
廣	広	广	guǎng
經	経	经	jīng
驛	駅	驿	yì
樂	楽	乐	lè
藥	薬	药	yào
灣	湾	湾	wān
畫	画	画	huà
戰	戦	战	zhàn

Read the table by column:

• Where the Japanese and Simplified columns match (学, 国, 体, 会, 来, 数, 湾, 画), the Japanese form is the same as the mainland form. You would still need to learn the Traditional one for Taiwan.
• Most rows differ in all three columns, for example 気/气/氣 and 売/卖/賣, so the Japanese form matches neither. 気 in particular is a common surprise, because 氣 appears in 天氣 (tiānqì, weather) and 空氣 (kōngqì, air).
• Often you can recover the Traditional form because the shinjitai is a recognisable simplification of it. 學 to 学 is a cut-down top. 關 to 関 keeps the frame.

The character 台 is worth a note. Taiwan’s official name is 臺灣, and 台灣 is the common everyday form. Japanese writes 台湾. The MOE dictionary lists 臺灣 as the headword for the island.

Group 3: Older forms and the small mismatches

Japanese kanji before the reform (kyūjitai, 舊字體) are close to Traditional characters, and that is the basis of the claim that Traditional is “easier for Japanese speakers”. The claim is only half true. The match is close, not exact. Older Japanese texts sometimes write 爲, for instance, which Taiwan treats as a variant of 為 (modern Japanese writes 為 as Taiwan does). Taiwan’s Ministry of Education standard, the 常用國字標準字體表, lists 4,808 common characters and is the authority for what is correct in Taiwan. When your Japanese memory and the Taiwan standard disagree, the Taiwan standard wins.

A few other differences to expect:

• Some characters exist only in Japanese, such as 畑 (hatake, field) and 峠 (tōge, mountain pass). They have no Taiwan standing as everyday characters.
• Some characters are common in Chinese words and rare in Japanese.
• Fonts and stroke details vary a little. When you write by hand in Taiwan, follow the stroke order in the dictionary. The stroke order guide covers the principles.

Sound: where your kanji readings help

You already know the on’yomi (音讀み), the readings Japanese borrowed from Chinese centuries ago. They are related to Mandarin sounds, in a loose and irregular way.

Character	Japanese on’yomi	Mandarin
山	san	shān
三	san	sān
金	kin	jīn
心	shin	xīn
新	shin	xīn
京	kei or kyō	jīng
教	kyō	jiào
九	kyū	jiǔ

Patterns you can use:

• Japanese k- often corresponds to Mandarin j-, as in 金 kin and jīn, 九 kyū and jiǔ.
• Japanese -n endings correspond to Mandarin -n: 山 san and shān, 金 kin and jīn, 三 san and sān, 心 shin and xīn.
• Mandarin -ng often corresponds to a Japanese long vowel (-ō, -ei, -ū): 京 kyō or kei and jīng, 生 sei and shēng, 東 tō and dōng.
• Japanese endings in -ku, -tsu or -chi often correspond to Mandarin syllables with no final consonant: 國 koku and guó, 一 ichi and yī, 六 roku and liù.

These are tendencies, not rules. There are many exceptions, and Mandarin has tones, which Japanese on’yomi do not carry. Treat the correspondence as a memory hook, then check every reading. You will need to learn the tones for each word. A pinyin chart and the tone practice tool help with the new sounds, and in Taiwan the sounds are taught with Zhuyin as well, which the Zhuyin chart covers.

Words: many match, some do not

Many two-character words are written alike and mean the same.

Word	Japanese	Mandarin (Taiwan)
學校	gakkō (学校)	xuéxiào
時間	jikan	shíjiān
世界	sekai	shìjiè
銀行	ginkō	yínháng
天氣	tenki (天気)	tiānqì
經濟	keizai (経済)	jīngjì

Not all shared-form words keep their meaning. 手紙, 勉強, 大丈夫 and 愛人 all look familiar and all mean something different in Mandarin. The full table is in Japanese-Chinese false friends. Some compounds also reverse their characters: Japanese 紹介 (shōkai) corresponds to Mandarin 介紹 (jièshào). The MOE dictionary records 紹介 as a classical word for 介紹; modern Chinese uses 介紹.

Grammar and function words

This is where kanji knowledge stops helping. Mandarin has no kana. A Japanese sentence has hiragana particles and verb endings to show its structure, and a Chinese sentence has only characters. Word order is also different: Mandarin puts the verb before its object (我喝茶), like English, while Japanese puts it last. Learners often find the loss of the kana anchors more of an adjustment than the characters themselves.

How much can you reuse?

There is no reliable figure for how much carries over. A more useful question is which group each character you know falls into. Sort a list of the characters you already read into the three groups above. The identical ones you only need to reconnect with a Mandarin sound. The shinjitai you must re-learn in Traditional form. You can use the dictionary search to check any character.

If you are still deciding whether to study Chinese at all, Should I Learn Chinese or Japanese? compares the two, and Traditional vs Simplified Chinese explains the Taiwan choice of script.

A sensible way to start

1. Learn Zhuyin or pinyin first, so your kanji readings do not take over. In Taiwan, most people type with Zhuyin.
2. Learn each Traditional character in Group 2 as its own entry, with its Mandarin reading and tone.
3. Treat every shared-form word as unconfirmed until you have checked its Mandarin meaning.
4. Read Traditional text at your level. The graded reading guide covers options.

Related reading

• Japanese-Chinese False Friends: 手紙, 勉強, 娘
• Traditional vs Simplified Chinese
• Should I Learn Chinese or Japanese?
• Chinese Stroke Order Rules