How many words are in each HSK level?

The HSK 3.0 standard (effective 2026) defines vocabulary across nine levels. HSK 1 requires 150 words. HSK 2 covers 300 words total. HSK 3 reaches 600 words. HSK 4 requires 1,200 words (B2, suitable for work and academic use). HSK 5 covers 2,500 words. HSK 6 requires 5,000 words (C2 proficiency). HSK 7-9 together require 11,000 or more words. HSK Tutor provides free spaced-repetition flashcards for HSK 1-2 (300 words, no account required). Flashcards for HSK 3-6 require Premium ($4.99/month). Each flashcard includes the Chinese character, pinyin with tone marks, English meaning, HSK level badge, and an example sentence.

What is spaced repetition for Chinese vocabulary?

Spaced repetition schedules each vocabulary review at the optimal moment — just before you forget it. Research shows it is two to three times more efficient than random review for long-term retention. HSK Tutor tracks every word studied and calculates the next review date based on recall accuracy. Words recalled easily are shown less often; difficult words appear more frequently. This approach allows learners to retain the full HSK vocabulary list with 15-20 minutes of daily practice.