Ask how many kanji you need and you'll get 2,136, the jōyō set. It's an accurate answer to a question that isn't quite the right one. Learning a kanji takes about a minute. Still knowing it in April is the entire problem, and almost no advice addresses it directly.
Bill Edwards
·7 min read
| Kanji | What it opens |
|---|---|
| ~100 | Numbers, dates, common signs. Menus start making sense |
| ~300 | A beginner course; simple graded text |
| ~1,000 | Most everyday text, dictionary within reach |
| 2,136 | The jōyō set — newspaper literacy, if the vocabulary is there too |
And the caveat that matters more than the count: kanji aren't words. Most Japanese vocabulary is compounds, and the compound doesn't always follow from its parts. Knowing 電 and 車 doesn't hand you 電車 (train) — it makes it much easier to keep once you've met it, which is a different and more useful kind of help.
The single biggest shift is realising kanji aren't drawings. They're assembled from a small set of recurring components — a couple of hundred — and once you see the pieces, you stop memorising shapes and start recognising combinations.
| Kanji | Its parts | Why it makes sense |
|---|---|---|
| 明 bright | 日 sun + 月 moon | The two bright things |
| 休 rest | 亻person + 木 tree | A person beside a tree |
| 林 woods | 木 + 木 | Two trees |
| 森 forest | 木 + 木 + 木 | Three |
Not every kanji decomposes this cleanly — plenty were phonetic borrowings and the story is invented after the fact. But enough of them do that learning components first turns a wall of two thousand shapes into a much smaller vocabulary of parts.
Strokes animated, components visible, and every character back in your deck before you'd lose it.
Mnemonic systems are the most popular kanji advice in English, and they work — for a while. A vivid story attached to a character genuinely makes it stick on first contact.
The problem shows up around character six hundred: you now have six hundred stories to keep track of, and retrieving the story has become as much work as retrieving the character. The mnemonic was scaffolding for the first encounter, and scaffolding that never comes down is just more building.
Mnemonics solve learning a kanji. They don't solve keeping it — and keeping is where the years go.
What solves keeping is scheduling. A character reviewed right before you'd forget it costs you one second and resets the clock further out each time. A character reviewed too early wastes the repetition; too late and you're learning it again from scratch. That timing is the entire value of spaced repetition, and it's the part no amount of clever storytelling substitutes for.
The other thing I'd tell my earlier self. Japanese kanji usually have several readings — a native Japanese one and one or more borrowed from Chinese — and which applies depends on the word.
So a card that says «生 = life, birth; readings: sei, shō, i-, u-, nama, ki…» is close to useless. What works is three separate words: 学生 gakusei, 先生 sensei, 生きる ikiru. Each arrives with its reading attached to something real, and the pattern assembles itself over time instead of being memorised as a table.
That last point is where most people stall, and it isn't a discipline problem: material at the right difficulty is genuinely hard to find in the intermediate range. Which is a separate problem, and the one worth solving next.
Frequently asked
The jōyō set is 2,136 characters, which is newspaper literacy. The useful thresholds come earlier: around 100 opens up signs and menus, around 300 covers a beginner course, and around 1,000 handles most everyday text with a dictionary nearby.
They work for learning a character on first contact and stop working as a system somewhere around six hundred, when you have six hundred stories to retrieve and the story costs as much as the character. Mnemonics solve learning; they don't solve keeping, which is where the years actually go.
No. Most kanji have several readings and which one applies depends on the word, so a card listing all of them is close to useless. Learn words instead: 学生 gakusei, 先生 sensei, 生きる ikiru. The pattern assembles itself over time.
At ten to twenty a week, which is a sustainable pace, roughly two to four years — and that's for recognition, with review continuing throughout. Bursts of a hundred a week produce a lot of characters learned and very few retained, because the constraint is retention rather than exposure.
They share an origin and many forms, but Japanese kept multiple readings for most characters while Chinese has essentially one each. Japanese also simplified differently from mainland China, so the shapes often differ. Knowing one language's characters is a genuine head start on the other, not a free pass.
Animated strokes, spaced repetition, and readings generated at your exact level — because kanji met in context stay and kanji met in a list don't.
Keep reading
Japanese has a reputation it only half deserves. Speaking it is one of the friendliest jobs you could take on; the writing is where all the work lives. Knowing that on day one changes where your hours go.
Three scripts, three jobs, and an order that matters more than people think. What each one does, how long each takes, and why the 2,000-kanji figure is the wrong number to plan around.
Five levels, one exam, and a gap most guides skip: the JLPT never asks you to produce a single word of Japanese. What each level means, which one anyone actually asks for, and what the certificate doesn't prove.
Japanese sounds are among the friendliest you could take on, and English speakers still get an accent. It comes from three habits you can't hear yourself doing — and one feature nobody teaches until it's too late.