How Many Words Do You Need to Pass TOPIK? Targets by Level, Backed by Past-Exam Data

Vocabulary targets by level

These estimates are based on the National Institute of Korean Language's learner vocabulary lists and widely used exam-prep guidelines.

What actually appears on the exam is far more concentrated

We ran a morpheme analysis on the reading passages of 21 past exams — 878 reading questions, 682 unique passages, about 21,000 content words. The skew in exam vocabulary is dramatic:

• The 1,000 most frequent words cover 98.6% of TOPIK I reading passages. Even the top 500 cover 86% — for beginners, nailing the 500 most frequent words unlocks most of the reading section.
• For TOPIK II, the top 1,000 cover 71% and the top 2,000 cover 87%. Vocabulary breadth expands sharply at the intermediate level, which is exactly where a level-sorted, frequency-ordered list pays off.
• 28 recurring words appeared in 18 or more of the 21 exams (사람 person, 회사 company, 사용 use, 받다 to receive, and so on). Starting with these is the shortest route.

Methodology: passages only (instructions and answer choices excluded), content words only (particles and endings excluded), morpheme-analyzed; "top N" means frequency rank within this past-exam corpus. Passages shared by multiple questions are counted once.

In short: learning in dictionary or textbook order is the slow way. Level-sorted, frequency-first is the data-backed shortcut.

A 90-day plan (example: targeting Level 4)

Turning the targets into an actual plan: if you're at Level 2 (~2,000 words) and aiming for Level 4 (~4,000–5,000), you need roughly 2,000–3,000 new words. Over 90 days that's a realistic 20–35 new words per day plus spaced-repetition (SRS) review.

The key is shifting weight from new words to review and reading as the exam approaches. Cramming new vocabulary in the final weeks doesn't stick — the reviews can't keep up.

Three principles for efficient memorization

1. Stay within your level to avoid overstudying — memorizing Level 5 words when you're aiming for Level 2 is a detour. Use a level-sorted list and stick to your level plus one.
2. Review with SRS before you forget — spaced repetition timed to the forgetting curve is the most efficient way to retain vocabulary. Paper vocabulary books can't manage the scheduling; an app with built-in SRS can.
3. Don't stop at "I recognize it" — reading questions test meaning in context. Test yourself in multiple formats (fill-in-the-blank, sentence interpretation), not just word-to-meaning flashcards.

Three common mistakes

• Memorizing in dictionary order — an order that has nothing to do with exam frequency gives the worst return. Switching to a level- and frequency-sorted list gets you far more out of the same effort.
• Counting "seen before" as "learned" — recognizing a word in a list and understanding it mid-sentence are different skills. Only count words you can recall in a test format.
• Reviewing on gut feeling — "catch up on weekends" fights the forgetting curve and loses. Small daily reviews, timed right, win.

How this works in TOPIK Note

TOPIK Note includes 7,000+ words sorted by TOPIK level, based on the National Institute of Korean Language's official dictionary (krdict), with four quiz types per word, SRS review, and 870+ past-exam reading questions with English explanations. The frequency analysis in this article was built from the same data.

FAQ

Written by the TOPIK Note team (native Korean speakers).