How to Learn Japanese Kanji: A Practical Guide

Kanji is the logographic writing system of Japanese, borrowed and adapted from Chinese. There are over 50,000 Kanji in existence but only about 2,136 are required for daily literacy (the Joyo Kanji). This guide gives you a practical, achievable strategy for learning Kanji at every JLPT level.

How Many Kanji Do You Actually Need?

N5 level: ~100 Kanji. N4 level: ~300 Kanji (cumulative). N3 level: ~650 Kanji. N2 level: ~1000 Kanji. N1 level: ~2000 Kanji. The good news: N5 and N4 Kanji are the most common in everyday Japanese. You will see them constantly, which means they are reinforced naturally through exposure.

The Radicals System

Every Kanji is built from smaller components called radicals. Learning radicals first dramatically speeds up Kanji acquisition. For example, the radical for 'water' (氵) appears in Kanji related to water: 海 (sea), 川 (river), 泳 (swim), 洗 (wash). Recognising a radical lets you guess the meaning of new Kanji and remember them more easily.

RTK vs Frequency Order

Two main strategies: RTK (Remembering the Kanji by James Heisig) — learns all 2000 Joyo Kanji by meaning, ignoring readings initially. Good for visual learners. Frequency order — learns Kanji in order of how often they appear in real Japanese. Better for JLPT preparation. For Indian learners targeting JLPT, frequency order combined with the JLPT Kanji lists is usually most efficient.

Spaced Repetition for Kanji

Kanji are best learned through spaced repetition — reviewing each character at increasing intervals. Anki with the core Kanji decks is the most effective free tool. Aim for 10-15 new Kanji per day with daily reviews. At this pace, you can learn all N5 Kanji in 2 weeks and all N4 Kanji in another 6-7 weeks.

Stroke Order — Does It Matter?

Yes, significantly. Writing Kanji in the correct stroke order makes the characters look natural and is essential if you plan to handwrite Japanese (job applications in Japan require handwritten forms). Stroke order also helps with reading handwritten Japanese. Every reputable textbook and app shows stroke order — follow it from the beginning.

Learn Readings in Context

Each Kanji has multiple readings: On-yomi (Chinese-origin reading) and Kun-yomi (native Japanese reading). Do not try to memorise all readings in isolation. Instead, learn Kanji readings through vocabulary words. 山 (mountain) is read 'yama' alone but 'san' in 富士山 (Fujisan). Vocabulary context makes readings stick far better than drilling in isolation.