Age → Grade Calculator

Calculate current age and corresponding grade by entering birth year

Age and Grade Calculation
Enter birth year and month
Korean School System Guide

Elementary School (6 years)

Enter at age 6 (Korean age 7) ~ Graduate at age 11 (Korean age 12)

Middle School (3 years)

Enter at age 12 (Korean age 13) ~ Graduate at age 14 (Korean age 15)

High School (3 years)

Enter at age 15 (Korean age 16) ~ Graduate at age 17 (Korean age 18)

University (4 years)

Enter at age 18 (Korean age 19) ~ Graduate at age 21 (Korean age 22)

Important Notes

  • • May differ due to early admission, retaking, transfer, etc.
  • • Grade is determined based on March
  • • Korean age = International age + 1
Understanding Korean Education System and Grade Structure

Structure of Korean Education System

Korea's education system is based on a 6-3-3-4 system, consisting of 6 years of elementary school, 3 years of middle school, 3 years of high school, and 4 years of university. The principle is to enter elementary school at age 6, and the new school year starts in March.

Characteristics and Goals by Educational Level

Elementary Education (6 years)

Goal: Cultivate basic academic skills and character education

Features: Homeroom teacher system, integrated curriculum

Main subjects: Korean, Mathematics, Social Studies, Science, English

Evaluation: Absolute evaluation, narrative assessment focused

Advancement: Assigned by residence area (compulsory education)

Middle Education (3 years)

Goal: Basic literacy and career exploration

Features: Subject-specific teacher system

Main subjects: Korean, Mathematics, English, Social Studies, Science, Technology & Home Economics

Evaluation: Combination of relative and absolute evaluation

Advancement: Lottery or selection system (compulsory education)

High Education (3 years)

Goal: Career preparation and professional development

Features: Liberal arts/science track selection, expanded electives

Main subjects: Korean, Mathematics, English, Research areas

Evaluation: Combination of internal grades and CSAT

Advancement: Entrance exam or lottery

Higher Education (4 years)

Goal: Cultivate specialized knowledge and research abilities

Features: Major selection, credit system operation

Main subjects: Major subjects, liberal arts, electives

Evaluation: Credit system (A, B, C, D, F)

Advancement: CSAT, internal grades, essays, interviews, etc.

Special Cases

Early Admission/Grade Skipping

  • • Early admission at age 5 possible
  • • Grade skipping for shortened schooling
  • • Gifted education programs
  • • Early admission to science/foreign language high schools

Grade Retention/Re-taking

  • • Grade retention due to academic difficulties
  • • Re-taking for university entrance
  • • Leave of absence for military service
  • • Delays due to personal circumstances

Alternative Education

  • • Alternative school programs
  • • Homeschooling
  • • Qualification examination courses
  • • International school programs

International Comparison

Major Countries' Education System Comparison

USA: K-12 system (Kindergarten + 12 years)

UK: 6-5-2-3 system

Japan: 6-3-3-4 system (similar to Korea)

Germany: 4-6-3 system (early career differentiation)

France: 5-4-3-3 system

Characteristics of Korean Education

  • • High educational enthusiasm and dependence on private education
  • • University entrance-focused curriculum
  • • Equal educational opportunities
  • • Rapid educational development and achievements
  • • Efforts to strengthen creativity and character education

📚 Educational Information Utilization Tips

Admission Preparation: Check admission requirements and preparation items for each school level in advance.

Career Planning: Establish long-term career plans considering characteristics of each grade level.

Learning Plan: Set learning goals and methods appropriate for each grade.

Information Gathering: Continuously monitor changes in education policies and entrance systems.

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