Enter your CSAT (수능) score to instantly check your grade and percentile. Based on official grade cut data from 2023–2025, this tool calculates grades for Korean, Math, English, Korean History, and Elective subjects.
Choose between 'Score → Grade' mode to look up your grade by entering a score, or 'Grade Cut Table' mode to view the full grade cut data for all subjects in a given year.
Choose the exam year (2023, 2024, or 2025) and the subject. English and Korean History use absolute grading based on raw scores, while Korean, Math, and Elective subjects use standard scores.
Enter your standard score or raw score and click 'Calculate Grade'. Your grade and percentile information will appear immediately.
Review your current grade, percentile range, and the points needed to reach the next grade. The percentile bar helps you visualize your position among all test-takers.
A raw score is the direct count of correct answers. A standard score is derived from the raw score using the mean and standard deviation of all test-takers, normalizing for exam difficulty. Korean and Math grades are determined by standard scores. When an exam is harder, the standard score cut for Grade 1 tends to be higher.
Since 2018, English has used absolute grading to reduce competition and excessive private tutoring. Grades are assigned based on score ranges: 90+ is Grade 1, 80–89 is Grade 2, regardless of how many students scored in each range. Korean History has also used absolute grading since 2017.
Elective subjects are divided into Social Studies and Science tracks, with each specific subject having its own grade cut based on its test-taker pool. This calculator uses an average-based estimate. For precise grade confirmation, refer to official KICE data.
Self-scoring on exam day can differ from official results by 1–3 points due to memory errors or calculation mistakes. If your estimated grade is near a boundary, plan with a one-grade margin in each direction.
Grade 1: Top 4%, Grade 2: 4–11%, Grade 3: 11–23%, Grade 4: 23–40%, Grade 5: 40–60%, Grade 6: 60–77%, Grade 7: 77–89%, Grade 8: 89–96%, Grade 9: Bottom 4%. Absolute-graded subjects (English, Korean History) do not follow these percentile bands.
Yes, grade cuts change annually based on exam difficulty, number of test-takers, and scoring trends. For example, the Korean Grade 1 cut was 134 in 2024 but dropped to 131 in 2025 due to a harder exam. Always select the correct year for accurate results.
This calculator is based on officially published grade cut data from KICE (Korea Institute for Curriculum and Evaluation). For elective subjects, an average value is used. For important decisions such as university applications, always verify with official KICE data (suneung.re.kr) or consult a professional.
Grade cut data in this calculator is based on officially published KICE data. Elective subject cuts are approximated using averages across Social and Science tracks. Always verify with official sources before making important admissions decisions.