CSAT (College Scholastic Ability Test (수능)) — Free Online Mock Test
Korean (45 Q), Math (45 Q), English (45 Q). 135 total. Scaled 0-300. · Official language: Korean (한국어).
CSAT exam at a glance
CSAT full-length mock tests
Attempt 50 full-length CSAT mock tests, each a distinct question set built on the real 135-question, 250-minute pattern — with instant scoring and section-wise analysis. The first 3 are free.
See all 50 CSAT mock tests →CSAT key facts & eligibility
| Conducting body | Korea Institute for Curriculum and Evaluation (KICE). |
|---|---|
| Official website | kice.re.kr ↗ |
| Mode | A paper-based national exam held on a single day (about eight hours) across South Korea. |
| Frequency | Once a year, on the third Thursday of November. |
| Scoring & marking | Six areas — Korean, Mathematics, English, Korean History, an Inquiry elective (social / science / vocational) and a second foreign language or Hanja. Korean and Mathematics report standard scores (mean 100, SD 20); English and Korean History are absolute-graded into 9 bands. The report shows a standard score, percentile and grade per subject. |
| Score validity | Used for that year’s university admission cycle. |
| Language | Korean. |
Who is eligible for CSAT?
Open to high-school graduates and expected graduates (and holders of equivalent qualifications). There is no age limit — repeat test-takers are common. Korean History is a compulsory subject for every candidate.
Last verified July 2026 against KICE — official (English) information. Always confirm current details on the official website before you register.
CSAT section breakdown
The CSAT mock test on Wrexa Edge replicates the real exam's section structure — same names, same question count per section, same time limits. No inter-section breaks — the timer runs continuously.
-
Korean Language 국어 (45 Q)
-
Mathematics 수학 (45 Q)
-
English 영어 (45 Q)
CSAT scoring & marking scheme
Strategy: CSAT has no negative marking. Attempt every question — blank answers cost you potential marks but cannot pull your score down.
Scale: CSAT (0-300).
How CSAT is conducted
- Mode
- Test format
- Backtracking
- Mark for review
CSAT time strategy
With 135 questions in 250 minutes, you have about 111 seconds per question on average. Successful candidates aim for the following pacing on each section:
- Korean Language 국어 (45 Q)
- Mathematics 수학 (45 Q)
- English 영어 (45 Q)
Wrexa Edge's analytics show your actual time-per-question after every mock so you can spot which sections you're losing time on.
CSAT topics covered
Across the 50 Wrexa Edge variants of CSAT, the following topics appear most often (sample distribution from one variant):
Korean Language 국어 (45 Q)
- Korean · 45
Mathematics 수학 (45 Q)
- Algebra — Quadratics · 3
- Algebra — Systems · 3
- Algebra — Exponents · 3
- Algebra — Inequalities · 3
- Algebra — Functions · 3
- Geometry — Circles · 3
- Geometry — Triangles · 3
- Geometry — Rectangles · 3
English 영어 (45 Q)
- Reading — Trade History · 3
- Reading — Vaccines · 3
- Reading — Marine Biology · 3
- Reading — Neural Networks · 3
- Grammar — Subject-Verb Agreement · 3
- Grammar — Tense · 3
- Grammar — Pronouns · 3
- Grammar — Usage & Confused Words · 3
CSAT difficulty calibration
Advanced tier. Advanced-level: high-stakes exam with rigorous content depth. Expect 4-8 months of structured prep.
Korean (45 Q), Math (45 Q), English (45 Q). 135 total. Scaled 0-300. · Official language: Korean (한국어).
Verified content — Wrexa Edge's CSAT bank has been deeply curated with real exam-aligned content (estimated 100% syllabus coverage).
How Wrexa Edge prepares you for CSAT
- Real test-day interface
- 50 distinct variants
- Detailed analytics
- Spaced repetition (Notebook)
- Optional proctoring
- Free to start
Expert take: what CSAT really tests
The Suneung is a national, once-a-year, eight-hour marathon whose relative grading (standard scores and percentiles) means your result depends on how you perform against everyone else, not an absolute mark. Korean and Mathematics swing rankings the most, while English and Korean History are absolute-graded — so the right strategy differs sharply by subject.
Preparation tips
- Prioritise Korean and Mathematics, where the standard-score system rewards relative outperformance most.
- Treat English pragmatically — it is absolute-graded into 9 bands, so aim precisely at the band you need.
- Drill past Suneung and national mock papers under full timing to build eight-hour stamina.
Common mistakes to avoid
- Spreading effort evenly when Korean and Maths move the ranking far more than the electives.
- Underestimating the sheer physical and mental endurance a single-day, eight-hour exam demands.
CSAT study plan
A phase-by-phase roadmap from your first concept to test-ready. Stretch or compress each phase to fit the time you have before your attempt.
- Cover Korean, Mathematics, English, Korean History and your electives
- Use the EBS Suneung-linked workbooks as the connected core material
- Attempt subject problems right after each unit
- Take the national mock exams and analyse standard-score outcomes
- Push Korean and Mathematics hardest — they move your ranking most
- Aim English precisely at the absolute band you need
- Solve past Suneung papers under the full single-day timing
- Build eight-hour endurance with back-to-back subject sittings
- Refine per-subject pacing and revise weak units
Where CSAT can take you
A strong CSAT result opens up these careers and higher-study paths:
- Korean university admission
- Top (SKY) universities & competitive majors
- Medicine, pharmacy & law tracks
- Scholarships & repeat-year improvement
Best books & official prep for CSAT
- EBS Suneung-linked workbooks (수능특강 / 수능완성) — EBS
- Past Suneung & national mock papers (기출문제 / 모의고사) — KICE
- Subject-wise CSAT problem books — EBS / Mimacbook
- English absolute-grading practice sets — Various
Official practice: KICE and provincial offices release the annual national mock exams and past Suneung papers — these, with the EBS-linked books, are the authoritative preparation.
Previous-year papers: KICE publishes past Suneung papers; they are the single most important resource.
Frequently asked questions
- What is the CSAT exam pattern?
- College Scholastic Ability Test (수능) contains 135 questions across 3 sections: Korean Language 국어 (45 Q), Mathematics 수학 (45 Q), English 영어 (45 Q). Total duration is 250 minutes (about 111 seconds per question).
- Does CSAT have negative marking?
- No — CSAT has no negative marking. Each correct answer is worth 1 mark, so attempt every question.
- How is CSAT scored?
- Scaled score range: 0 to 300. CSAT (0-300).
- How can I practise CSAT online for free?
- Wrexa Edge gives you 3 free full-length CSAT mock tests — with instant scoring, detailed explanations and analytics — plus 47 more with Pro. Start practising in under a minute, no card required.
- What is the difficulty level of CSAT?
- CSAT is rated Advanced difficulty on Wrexa Edge. Advanced-level: high-stakes exam with rigorous content depth. Expect 4-8 months of structured prep. Korean (45 Q), Math (45 Q), English (45 Q). 135 total. Scaled 0-300. · Official language: Korean (한국어).
- How long is the CSAT exam?
- CSAT runs for 250 minutes total across 3 sections. On Wrexa Edge the timer is enforced exactly as on the real exam — including no inter-section breaks.
- What topics are covered in CSAT?
- CSAT is split into: Korean Language 국어 (45 Q), Mathematics 수학 (45 Q), English 영어 (45 Q). Each section is timed and weighted separately. Korean (45 Q), Math (45 Q), English (45 Q). 135 total. Scaled 0-300. · Official language: Korean (한국어).
- What tools or aids are allowed during CSAT?
- No special tools are required.
- Is the CSAT test adaptive?
- No — CSAT is a fixed-form (linear) test. Every candidate sees the same number of questions per section.
- How many CSAT mock tests does Wrexa Edge offer?
- Wrexa Edge generates 50 distinct CSAT variants — each with different question content, not just shuffled options — the first 3 free for everyone and 47 more with Pro. That's 6750 unique practice questions in the real test-day interface.
- Is there a free CSAT test series 2026?
- Yes. The Wrexa Edge CSAT test series for 2026 gives you 3 free full-length mock tests (50 in total) plus subject-wise and topic-wise tests — instant scoring and detailed analysis, no card required.
- Are CSAT previous year question–style papers included?
- Every CSAT mock is modelled on the official exam pattern and the style of previous years' papers — the same 135-question structure, sections and marking — so your practice mirrors the real paper you'll sit.
- Which is the best free CSAT mock test online?
- Wrexa Edge's CSAT mock test replicates the real exam interface, timing and marking scheme, with instant score, section-wise analysis and 50 fresh variants — a strong free choice for 2026 preparation.
- Can I take the CSAT mock test on mobile?
- Yes. CSAT mock tests run in any browser on mobile, tablet or desktop — no app or download needed. Start on your phone and your progress and analytics sync when you sign in.
- What is the CSAT syllabus?
- The CSAT syllabus maps to its 3 sections: Korean Language 국어 (45 Q), Mathematics 수학 (45 Q), English 영어 (45 Q). Wrexa Edge's mock tests cover the complete syllabus topic by topic — see the topics-covered breakdown above — so you practise every area at real exam difficulty.
- What is the eligibility for CSAT?
- Open to high-school graduates and expected graduates (and holders of equivalent qualifications). There is no age limit — repeat test-takers are common. Korean History is a compulsory subject for every candidate. Wrexa Edge focuses on realistic CSAT practice: 3 free full-length mocks in the exact exam pattern, ready whenever you are.
- When is the CSAT exam and how should I prepare?
- Official CSAT exam dates are announced by the conducting body for each cycle — check the latest notification for the current schedule. To be ready, follow a phased study plan and take full-length timed mocks; Wrexa Edge gives you 3 free CSAT mocks with instant scoring so you can track your readiness week by week.
Related exams & practice tests
Candidates preparing for CSAT also practise these on Wrexa Edge:
Browse more: All University & Higher Ed exams → · All South Korea exams → · Full exam catalog →
Ready to ace CSAT?
Join thousands of candidates practising on Wrexa Edge. Free signup, 50 variants per exam, instant scoring.
Start practising free →