California Institute of Technology

Pasadena, California

About California Institute of Technology

California Institute of Technology (Caltech) is a prestigious private research university located in Pasadena, California, United States. Known for its strong focus on science and engineering, Caltech offers a range of courses in fields such as physics, chemistry, biology, computer science, and engineering. It has a student-to-faculty ratio of 3:1, which allows for personalized attention and close collaborations between students and faculty. Caltech is renowned for its cutting-edge research in various scientific disciplines, including astronomy, astrophysics, geology, and aerospace engineering. Its research programs and facilities attract top scholars and contribute to groundbreaking discoveries and advancements in science and technology.

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Undergraduate Programs


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US News


QS World


The World Rankings

Admissions Overview

Application Deadlines

Early Action: Nov 1
Regular Decision: Jan 3

Common App


Class Rank



Not Considered

Recommendation Letters

Two secondary school teachers: one from a math or science teacher; one from a humanities or social science teacher.

TOEFL, IELTS, Cambridge or Duolingo

Required for International Students

Popular Majors


Caltech's physics program is highly regarded, offering a comprehensive curriculum that covers classical and quantum physics, astrophysics, condensed matter physics, and more.

Computer Science

The computer science program at Caltech emphasizes both theoretical foundations and practical applications, preparing students for careers in software development, artificial intelligence, data science, and more.

Mechanical Engineering

Caltech's mechanical engineering program equips students with the knowledge and skills to design and analyze complex systems, ranging from robotics and aerospace technology to renewable energy and biomedical devices.

Electrical Engineering

This major focuses on electrical systems, electronics, and computer engineering, offering students opportunities to delve into areas such as integrated circuits, communication systems, signal processing, and microelectronics.


Caltech's chemistry program is renowned for its research-oriented approach, covering various areas such as organic chemistry, inorganic chemistry, physical chemistry, and chemical biology.


Caltech offers a rigorous biology program that explores fundamental concepts in molecular and cellular biology, genetics, biochemistry, and neuroscience, providing a strong foundation for careers in research, medicine, or biotechnology.

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Learn more about California Institute of Technology


Yes, Caltech is committed to providing financial aid to students who demonstrate need. The college offers a generous financial aid program to ensure that students from diverse backgrounds can attend.

Yes, research opportunities are available for undergraduate students at Caltech. Students have the chance to work closely with faculty members on cutting-edge research projects.

Yes, Caltech has a strong alumni network that spans across various industries and disciplines. Alumni often contribute to the college by mentoring current students and providing job opportunities.

Yes, Caltech fosters an entrepreneurial and innovative culture. The college provides resources, support, and programs to help students translate their ideas into real-world applications.

Yes, Caltech offers study-abroad opportunities for students to enhance their academic experience by studying at partner institutions around the world.

Caltech has a highly competitive admissions process, with a low acceptance rate. The college seeks applicants who demonstrate exceptional academic abilities and a passion for scientific and technological inquiry.

Yes, Caltech is committed to fostering a diverse and inclusive community. The college values students from different backgrounds, cultures, and perspectives.

Yes, Caltech offers a wide range of extracurricular activities, including clubs, sports, student organizations, and cultural events, to enrich the student experience outside of academics.

Yes, Caltech provides on-campus housing options for its students. The college offers various residential options, including dormitories and apartments.

Caltech offers comprehensive academic support services, including tutoring, study groups, academic advising, and resources for academic success.