IELTS vs TOEFL: Which Exam Should You Take?

【この記事について】 IELTSとTOEFLの違いを詳しく解説し、どちらの試験を受けるべきかを判断するためのガイドです。試験形式、採点方法、受験料、そして目標に応じた選び方を紹介しています。DeepL翻訳（要確認）

If you are planning to study abroad, apply to a graduate program, or need an internationally recognized English proficiency certificate, you will almost certainly need to choose between IELTS and TOEFL iBT. Both are widely accepted and highly respected — but they test English in different ways and suit different candidates.

Here is a clear, practical comparison to help you make the right decision.

The Basic Difference

IELTS (International English Language Testing System) is a British-developed exam that uses natural, conversational English. The speaking component is a face-to-face interview with a human examiner. Writing tasks include a data description (Academic) or letter (General Training) plus an essay.

TOEFL iBT (Test of English as a Foreign Language, Internet-Based Test) is an American-developed exam conducted entirely on a computer. The speaking component involves speaking into a microphone and being scored by AI and human raters. It is considered more academic in tone and structure.

Key Differences at a Glance

Which Universities Accept Which?

IELTS is the preferred exam for universities in the UK, Australia, New Zealand, and Canada. Most European universities also accept IELTS. In Japan, many graduate programs at national and private universities accept IELTS scores.

TOEFL iBT is the preferred exam for universities in the United States. Most American universities list TOEFL as their primary requirement, though many now also accept IELTS.

If you are applying to universities in multiple countries, check each institution’s requirements carefully. Many now accept both.

Which Is Easier?

Neither exam is objectively easier — but certain types of test takers tend to find one more comfortable than the other.

You may find IELTS more comfortable if:

• You prefer face-to-face conversation to speaking into a microphone
• You have a strong British or Australian English background
• You find American academic writing style challenging

You may find TOEFL more comfortable if:

• You are comfortable with computers and typing
• You have studied American English or American academic style
• You prefer a more structured, predictable test format

For Japanese test takers specifically, many find TOEFL’s integrated tasks (reading + listening + speaking/writing) challenging because they require processing multiple inputs quickly. IELTS’s tasks tend to feel more natural and conversational.

Score Requirements to Know

For UK universities: IELTS 6.0–7.0 is typically required for undergraduate; 6.5–7.5 for postgraduate programs.

For US universities: TOEFL iBT 80–100 is typical for undergraduate; 90–110 for graduate programs.

For Japanese graduate programs: Requirements vary widely — check each university individually.

Preparing for Either Exam

Regardless of which exam you choose, effective preparation follows the same principles:

1. Start with an official practice test to identify your current level and weakest areas
2. Focus on your weakest skill first — for most Japanese test takers this is speaking or writing
3. Practice integrated skills — reading + listening + writing together, not just in isolation
4. Use official preparation materials from ETS (TOEFL) or British Council/IDP (IELTS)
5. Give yourself enough time — 3–6 months of consistent preparation for most candidates

Not sure which exam is right for your goals? Book a free consultation with James at MakoStars for personalized advice.