Top Tech / STEM · Pasadena, California
California Institute of Technology
Most selective in the country. 2.6% acceptance rate.
Calculate your Caltech oddsHow hard is it to get into Caltech?
Caltech is most selective in the country, with a 2.6% acceptance rate. The application is read holistically, so essays, recommendations, activities, and demographic context all factor into the decision alongside test scores and GPA.
Quick Facts
| Acceptance rate | 2.6% |
| Cost of attendance | $86,886 |
| Average net price (after aid) | $16,075 |
| Undergraduate enrollment | 987 |
| 6-year graduation rate | 94.4% |
| Median earnings (10 yrs after entry) | $128,566 |
| Type | Private · Top Tech / STEM |
| Setting | Midsize urban |
Source: U.S. Department of Education College Scorecard. Last verified May 2026.
Getting In
Caltech's 2.6% acceptance rate puts it in the most selective in the country tier. Scores in that range don't guarantee admission. Scores outside it don't rule it out. The application is read holistically.
That number doesn't tell you your odds. A 1550 SAT and a 4.0 GPA put you in the academic conversation. They don't put you in the admit pile. Your actual probability depends on your full profile: coursework rigor, activities, recommendations, demographic context, and what your essays accomplish. The pool average is a starting point, not a forecast.
Personalized estimate
What are your actual odds at Caltech?
Enter your SAT/ACT, GPA, activities, and target schools. Get a probability calibrated to real admit data, not a headline acceptance rate.
Run the calculatorBeyond the Numbers
Caltech is best known for its tiny class sizes, the Honor Code, JPL, and the deepest undergraduate research culture in STEM. Admissions readers are looking for applicants whose specific interests and ways of working would actually thrive in that environment. Not generic “passion.” Concrete curiosity that already shows up in what you do.
Class Profile
The undergraduate population at Caltech breaks down as follows according to federal IPEDS data:
Race & ethnicity
These percentages reflect the enrolled student body, not the applicant pool. Admit rates by demographic differ from the headline rate, and the school's composition is the result of its full holistic review process.
Cost & Financial Aid
The published cost of attendance at Caltech is $86,886 per year before aid. After grants and scholarships, the average student pays $16,075per year. The sticker price isn't the number that matters for most families.
Net price by family income
What the average student actually pays per year, after grants:
| Family income $0–30K | $-2,133 |
| Family income $30K–48K | $-2,886 |
| Family income $48K–75K | $431 |
| Family income $75K–110K | $18,753 |
| Family income $110K+ | $54,157 |
Highly selective private universities tend to meet 100% of demonstrated financial need, often without loans, for families below specific income thresholds. The number that matters for your family is your net price, which can be estimated using the school's own net price calculator before applying.
Outcomes
Federal data on what happens after enrollment at Caltech:
Graduation rate
94.4%
6-year (federal IPEDS)
Median earnings
$128,566
10 yrs after entry
18.0% of students receive a Pell Grant (federal need-based aid), and 4.3%take federal loans. These rates are useful proxies for the school's socioeconomic mix and how much most families end up borrowing.
Caltech essay tools
Score, brainstorm, or revise Caltech essays with tools tuned to Caltech's prompts.
Caltech vs. Peer Schools
Side-by-side comparison with similar Top Tech / STEM schools applicants typically consider.
| School | Accept | SAT mid-50 | Net price |
|---|---|---|---|
| Caltech This page | 2.6% | — | $16,075 |
| MIT | 4.5% | 1530–1580 | $20,111 |
| CMU | 11.2% | 1500–1560 | $31,944 |
| Harvey Mudd | 12.7% | 1500–1570 | $35,924 |
| Georgia Tech | 14.1% | 1370–1540 | $12,116 |
| Stevens | 47.6% | 1380–1505 | — |
FAQ
How hard is it to get into Caltech?
Caltech is most selective in the country. The most recently published acceptance rate is 2.6%. Test scores are necessary but not sufficient. Holistic review weighs essays, activities, recommendations, and demographic context.
How much does Caltech cost?
The published cost of attendance at Caltech is $86,886 per year before financial aid. The average net price after grants and scholarships is $16,075. Most highly selective schools meet 100% of demonstrated need for families below specific income thresholds.
What is the graduation rate at Caltech?
94.4% of students at Caltech graduate within 6 years (the standard federal graduation rate metric).
Sources
All numerical data on this page is sourced from official, primary sources. Admissions stats reflect the most recent publicly published cycle. Verify current figures with Caltech's admissions office before applying.
- U.S. Department of Education College Scorecard — federally maintained dataset on admissions, cost, demographics, and post-graduation outcomes (IPEDS-derived).
- IPEDS (Integrated Postsecondary Education Data System) — the underlying federal data collection that all U.S. accredited institutions report into annually.
- California Institute of Technology official admissions site — for the most current published figures and application requirements.
- Caltech Common Data Set — the standardized annual data document published by the school.
Last verified May 2026. Stats reflect Caltech's most recent publicly published admit cycle.