California Institute of Technology vs University of California, San Diego
California Institute of Technology
Pasadena, United States
University of California, San Diego
San Diego, United States
Head-to-Head Headliner Comparison
Scan the essential comparative metrics side-by-side to guide your final choice.
| Comparative Indicators | California Institute of Technology | University of California, San Diego |
|---|---|---|
| QS World Rank (2025/2026) | #10 | #66 |
| THE World Rank (2025) | #7 | #34 |
| ARWU Shanghai Rank | #9 | #20 |
| US News Global Rank | #23 | #21 |
| Acceptance Rate | 3% | 26% |
| Annual Tuition (Intl) | $62,388 | $47,052 |
| Established Year | 1891 | 1960 |
| Total Students Count | 2,430 | 42,974 |
| Campus Safety Rating | 92 / 100 | 88 / 100 |
5-Year Ranking Trajectory
Compare dynamic overall prestige ranking shifts over the past 5 years (lower value = higher rank).
Executive AI Admissions Counselor Verdict
Global Prestige & Reputation Vibe
Caltech offers an intensely rigorous, small-scale, research-focused environment with unparalleled global prestige in pure STEM. UC San Diego provides a broader, collaborative, top-tier public university experience, rich in STEM strengths and diverse opportunities.
Elite Academic Strengths & Major Comparison
Caltech's Physics major is unequivocally superior for pure intellectual depth and groundbreaking research access. UC San Diego's robust Biological Sciences program (e.g., Human Biology, Marine Biology) dominates, leveraging its medical school and oceanographic institute strengths.
Campus Culture & Daily Student Vibe
Choose Caltech if seeking an elite, small, intensely research-focused path towards top-tier PhDs or highly specialized careers. Opt for UC San Diego for world-class STEM within a larger public university, balancing rigor with broader collegiate experiences.
Discipline Focus Showdown
Click on any subject in the QS Showdown table below to dynamically compare specific majors, annual tuition fees, and scholarship opportunities side-by-side.
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Click any subject in the QS Rankings Showdown table below to instantly unlock side-by-side program profiles and specific global international scholarships!
QS Subject Rankings Showdown
Head-to-head QS subject rankings. Click on any subject row to dynamically pull direct courses and scholarships in the Discipline Focus card above!
California Institute of Exclusive Edge
University of California, Exclusive Edge
Source: QS World University Rankings by Subject. Rankings reflect the best available year in our database.
Cost of Living Face-off
Detailed ballpark monthly student expenditure comparison based on city indices.
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