California Institute of Technology vs University of California, San Diego
01 · Global Academic Standing
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.
02 · Departmental & Subject Strengths
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.
03 · Campus Environment & Cohort Culture
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.
Head-to-Head Indicator Showdown
| Comparative Dimension | California Institute of Technology | University of California, San Diego |
|---|---|---|
QS World University Rank Global employer & academic reputation index | #7 (2027)+74 places | #81 (2027) |
THE World University Rank Teaching, research environment & citations | #7 (2027)+30 places | #37 (2027) |
ARWU Shanghai Rank Nobel/Fields alumni & highly cited researchers | #10 (2026)+10 places | #20 (2026) |
U.S. News Global Rank Global research reputation & publications | #23 (2027) | #23 (2027) |
Admissions Selectivity Estimated acceptance rate (lower = more selective) | 3%More selective | 26% |
Annual International Tuition Estimated undergraduate/graduate base fee | $62,388 | $47,052Lower tuition |
Founding Heritage Year of institutional establishment | 1891Lead | 1960 |
Student Cohort Scale Total enrolled degree-seeking students | 2,430 | 42,974 |
Campus Safety Index Composite campus & surrounding municipal safety | 92 / 100Lead | 88 / 100 |
10-Year Historical Ranking Trajectory
Decade-long global standing curve across major league tables (higher curve position = stronger rank).
QS Subject Rankings Showdown
Click any discipline row to inspect side-by-side degree programs, tuition, and scholarships below.
| Academic Subject (Click to Inspect Programs) | California Institute of | California, San Diego |
|---|---|---|
| Geophysics | #4 | #14 |
| Earth and Marine Sciences | #6 | #18 |
| Geology | #6 | #15 |
California Institute of · Specialist Subject Standings
California, San Diego · Specialist Subject Standings
California Institute of Programs
Refer to the official California Institute of course catalog for current intake fees.
California, San Diego Programs
Refer to the official California, San Diego course catalog for current intake fees.
Cost of Living & Annual Budget Face-off
Estimated monthly student expenditure in Pasadena vs San Diego alongside annual international tuition.
California Institute of (Pasadena)
California, San Diego (San Diego)
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