大学修学能力試験等級計算機 (수능 등급 계산기)
修学能力試験のパーセンタイルを9等級制（등급컷）に変換します。
Overview
The Korean CSAT (수능) reports each subject on a nine-grade scale defined by fixed percentile cut-offs rather than by raw marks. Grade 1 is the top 4 percent of test takers, grade 2 the next 7 percent to a cumulative 11, then 23, 40, 60, 77, 89 and 96 percent, with grade 9 covering the bottom 4 percent.
あなたの等級 (등급)
等級カット表 (등급컷 기준표)
| 等級 | パーセンタイル範囲 | 割合 | 累積 |
|---|---|---|---|
注意事項 (참고사항)
- 9等級制は固定されたパーセンテージのカットオフで受験者を区分します
- 等級の境界は点数ではなく受験者の割合で決まります
- このシステムが適用される科目：国語、数学、英語、韓国史、社会/理科
- 英語は2018年から絶対評価（절대평가）を採用
How to Use
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1
Enter your values
Type your numbers into the CSAT Grade Calculator (Korea) input fields.
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2
Adjust the options
Choose the units, method, or region that fits your situation, or apply a quick preset.
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3
Read the result instantly
The result updates as you type — no submit button, and nothing is sent to a server.
About
Because the boundaries are proportions of the cohort, the raw score required for a given grade moves with question difficulty every year. A hard paper lowers the grade-1 cut-off and an easy one raises it, which is why year-on-year comparison of raw marks carries no information about relative performance.
The design compresses the middle of the distribution and stretches the tails: grades 4 and 5 each span twenty percentile points, while grade 1 spans four. A candidate near a boundary can move a full grade on a single question, and admissions formulas that weight grades rather than percentiles amplify that discontinuity.