High School Entrance Exam Preparation: A Complete Guide for Families in Japan

For foreign families raising children in Japan, the high school entrance exam — known as kokou juken (高校受験) — can feel like navigating an entirely new world. Unlike many Western countries where high school admission is largely automatic, Japan's system requires students to actively compete for spots at their preferred schools. Understanding the structure, timeline, and best preparation strategies is essential for your child's success.

This guide breaks down everything you need to know about high school entrance exam preparation in Japan, including special accommodations available for foreign students.

Understanding the Japanese High School Entrance Exam System

High school in Japan is not compulsory, meaning students must pass an entrance exam to enroll. The exam is typically taken at the end of junior high school (third year, around age 15), and results determine which high school a student can attend — a choice that can have long-lasting effects on their academic and career trajectory.

There are two main types of high schools:

• Public (prefectural/municipal) high schools — Lower cost, highly standardized exams
• Private high schools — More flexible entry routes, higher tuition, often multiple application windows

There are also two main exam pathways:

1. General entrance examination (ippan nyuugaku shiken) — The standard written exam
2. Recommended entrance (suisen nyuugaku) — Based on school recommendations, interviews, and essays; held earlier in the year (January–February)

One critical point for families: all public high school exams are held on the same day. This means your child can only apply to one public school. Private schools have separate exam dates, allowing multiple attempts.

Key Subjects and What to Expect

Public and private schools test different numbers of subjects. Knowing this helps you focus your preparation time efficiently.

In addition to written exams, most schools factor in naiten (内申点) — the internal academic assessment score — which reflects your child's grades and conduct across all three years of junior high. This means exam preparation truly begins in first year of junior high, not just third year.

The Hensachi System: Understanding School Rankings

One of the most important concepts in Japanese high school admissions is hensachi (偏差値), a deviation score system that measures a student's performance relative to the general test-taking population.

• The average hensachi is 50
• Top-tier schools in Tokyo (like Hibiya or Nishi) require 70–75+
• Mid-range schools fall around 50–60
• Lower-tier schools accept students with scores of 30–45

Hensachi scores are typically assessed through mock exams (mogi shiken) held at juku or by private testing companies. These scores help students identify which schools are realistic targets, which are safety schools, and which are reach schools.

Special Measures for Foreign Students

Japan recognizes the challenges non-native Japanese speakers face in high-stakes exams. Several prefectures offer special entrance examination measures (tokubetsu sochi) for foreign students.

Tokyo, for example, provides:

• Furigana (ruby text) added to exam questions to assist with kanji reading
• Permission to use a Japanese–Japanese or Japanese–foreign language dictionary during the exam
• Extended exam time to accommodate slower reading speeds
• Special foreign student exam tracks for students who have lived in Japan for fewer than 7 consecutive school years

The program often referenced is the Kikoku Seitotou Tokubetsu Sochi (帰国生徒等特別措置), which includes both a written subject test and an interview component. Students qualify if they returned from abroad or arrived from a foreign country within a specified period — typically within the last 3–6 years.

Important: Eligibility requirements and available accommodations vary by prefecture. Always confirm directly with your local Board of Education (kyouiku iinkai) or your child's junior high school guidance counselor.

For a broader overview of how the Japanese education system works for foreign families, see our guide on the Japanese education system and our dedicated junior high school guide.

Juku (Cram Schools): Should Your Child Attend?

The vast majority of students preparing for high school entrance exams attend juku (塾) — private supplementary schools that specialize in exam preparation. Juku classes typically run after school, on weekends, and intensively during school vacation periods.

Why juku matters:

• Juku instructors have deep knowledge of specific high schools and their exam formats
• Mock exams at juku provide reliable hensachi scores
• Study schedules are structured around exam timelines
• Students benefit from peer pressure and a focused study environment
• Juku staff can often advise on which schools are realistic targets better than junior high school teachers

Types of juku:

Juku can be expensive — monthly fees typically range from ¥15,000 to ¥50,000 or more, with summer intensives costing an additional ¥50,000–¥100,000. For financial planning around education costs in Japan, see our article on financial planning for expat families.

A Month-by-Month Preparation Timeline

High school entrance exam preparation is a marathon, not a sprint. Here is a general timeline for third-year junior high students (chu-3):

Starting preparation in first or second year of junior high is increasingly common, especially for families targeting top-tier public schools or elite private schools.

Practical Tips for Foreign Families

Navigating juken as a foreign family comes with unique challenges. Here are strategies that work:

Start Japanese language support early. If your child is still developing Japanese fluency, investing in Japanese language tutoring from first year of junior high gives them the best chance of being ready for exam-level reading and writing by third year. See our guide on teaching Japanese to foreign children.

Research schools that welcome international students. Some high schools actively recruit students with international backgrounds, offer international courses (kokusaika), or provide additional Japanese language support. These schools may be better environments for your child even if they are not the highest-ranked.

Connect with the local Board of Education. Your local kyouiku iinkai can confirm which special measures are available in your prefecture, eligibility criteria, and how to apply for accommodations.

Use official guidebooks. Tokyo's Metropolitan Government publishes an annual English-language guidebook for high school admissions, including information for non-Japanese-speaking families.

Attend open campus events. Most high schools hold open campus days (opunkyanpasu) in the summer. Visiting in person gives you and your child a realistic sense of school culture and environment.

Costs to Budget For

Additional Resources

For deeper information on high school entrance exams in Japan, these resources are highly recommended:

• High School Entrance Exam Complete Guide – Chuukou Benkyou — A comprehensive Japanese-language resource covering the full exam system, subject preparation, and strategy
• Tokyo Room Finder: Japanese High School Entrance Exams (Juken) Guide — An excellent English-language overview of the juken system
• High School in Japan: TIPS (Tabunka Tokyo) — Official multilingual support resource for foreign residents
• Education Fund Planning for Children in Japan – Living in Nihon — Guidance on saving and budgeting for Japanese education costs
• Certifications and Skills Development in Japan – For Work in Japan — Useful for understanding how Japanese academic credentials feed into career development

For more on navigating high school options in Japan, see our complete guide to high school in Japan for foreign families.