US holisticUnited States · Bachelor’sResearched 1d ago

Computer Science

California Institute of Technology

PortPath researches criteria from public sources and can be incomplete or out of date. Always verify against the program’s official announcement before relying on it. PortPath never predicts admission chances.

Overview

Caltech admits first-year bachelor applicants to the Institute through a holistic process rather than to a separate undergraduate Computer Science intake. For applicants interested in Computer Science, the main signals are rigorous STEM academics, required Caltech essays that show deep STEM curiosity, and required standardized testing; portfolios are optional supplements that can add context but are not required.

Admission criteria

PortfolioLow

Optional only. Caltech allows STEM portfolios, non-STEM portfolios, and research papers/publications as supplemental materials to help the committee learn more about an applicant. For CS-oriented applicants, useful portfolio evidence includes coding projects, robotics, research posters, inventions, schematics, or presentations, with clear explanation of the applicant's individual role and motivation. Caltech explicitly says a portfolio and research are not admissions requirements.

Bar to clear: Not used by this program

Statement of PurposeHigh

Caltech requires supplemental essays and treats them as an important part of the admission decision. The prompts are heavily STEM-focused: applicants are asked to explain academic interests, STEM curiosity, meaningful STEM experiences, and how they have been a creator, inventor, or innovator. The essays are used to understand interests, experiences, background, and fit for Caltech's STEM-intensive environment.

Bar to clear: All required Caltech supplemental essays completed with specific STEM-focused responses

Academics & GPAHigh

This is a decisive factor. Caltech says students are admitted based on strong academic performance in a rigorous college-preparatory program, especially math and science, and it expects mastery for the core curriculum. Required preparation includes four years of math including calculus, one year each of physics and chemistry, four years of English, and strong overall transcript rigor; biology and additional social science/history are recommended. Caltech also expects grades showing proficiency in these courses.

Bar to clear: Rigorous transcript with 4 years of math including calculus, plus physics and chemistry

Test scoresHigh

Required and clearly important. Caltech requires either SAT or ACT for first-year applicants and uses scores as one data point in holistic review, with special attention to section-level readiness for Caltech rigor. For international applicants, English proficiency scores are required unless English is native or the language of instruction; Caltech publishes minimums for IELTS, TOEFL, and Duolingo. Caltech states there is no SAT/ACT cutoff, but also describes the score ranges that have typically aligned with stronger outcomes.

Bar to clear: SAT/ACT required; international English minimums are IELTS 7.0, TOEFL 100, or Duolingo 130

Application components

PortfolioStatement of purposeTranscript / GPASAT or ACT score reportEnglish proficiency test report

How to stand out

→Build your application around advanced math, physics, chemistry, and strong grades in the hardest courses available.

→Use the Caltech essays to show precise STEM interests, how you pursued them, and what you actually built, studied, or investigated.

→If you have meaningful CS work, submit a focused STEM portfolio with 1-3 strong projects and clearly state your own contribution.

→Aim for balanced SAT/ACT section scores, especially strong math and verbal readiness; for international applicants, clear the published English minimums early.

Source confidence

90%Well sourced

Sources

Caltech Academic Catalog: Admission to the First-Year Class

catalog.caltech.edu/current/information-for-undergraduate-students/admission-to-the-first-year-class/

Official catalog page stating holistic basis for admission, required essays, optional supplemental materials, and required SAT/ACT plus English tests for international students.

Caltech Undergraduate Admissions: Academic Requirements for First-Year Applicants

www.admissions.caltech.edu/apply/first-year-applicants/academic-requirements-for-first-year-applicants

Official page listing required and recommended high-school preparation, including calculus, physics, chemistry, English, and transcript expectations.

Caltech Undergraduate Admissions: Standardized Tests

www.admissions.caltech.edu/apply/first-year-applicants/standardized-tests

Official page explaining SAT/ACT requirement, how scores are used in review, and typical successful score levels without a formal cutoff.