Caltech vs UPenn: Which Top School Is Better?

Choosing between Caltech and UPenn can be difficult because they offer very different college experiences. Caltech is the most selective university in the country and focuses heavily on science and engineering, while UPenn is a large Ivy League school with a wide range of majors.

This guide compares Caltech vs UPenn across factors like acceptance rates, rankings, academics, campus life, costs, and financial aid. It should make it easier to picture yourself at each school and decide which one suits you better.

• Caltech vs UPenn: Acceptance Rates
• Caltech vs UPenn: Rankings
• Caltech vs UPenn: Academics
• Caltech vs UPenn: Campus Life
• Caltech vs UPenn: Cost of Attendance
• Caltech vs UPenn: Financial Aid and Scholarships
• Final Verdict: Caltech or UPenn?
• Frequently Asked Questions
• Takeaways

Caltech vs UPenn: Acceptance Rates

When comparing Caltech vs UPenn, one of the first things to consider is how competitive each school is. Both are colleges with the lowest acceptance rates in the U.S., admitting only a small percentage of students each year.

Here’s a look at their admissions trends for the Class of 2029:

Both schools are highly competitive. Caltech is more selective, with an acceptance rate of 3.8%, while UPenn admitted 4.9% of applicants, its lowest rate on record.

Here’s how acceptance rates have changed over the past three admissions cycles:

• Caltech’s acceptance rate was 2.7% for the Class of 2026 and rose slightly to 3.1% for the Class of 2027. For the Class of 2028, the rate dropped to 2.3%, showing that admissions remain extremely competitive despite small year-to-year changes.
• UPenn’s acceptance rate was 6% for the Class of 2026 and dipped slightly to 5.9% for the Class of 2027. For the Class of 2028, it fell again to 5.4%, continuing a steady downward trend and making UPenn one of the most selective Ivies.

Both schools are very competitive, but Caltech is the hardest to get into in the country. If you plan to apply to either school, you’ll need a strong application with high grades, challenging classes, meaningful activities, and clear, well-written essays.

Caltech vs UPenn: Rankings

Rankings shouldn’t be the only factor in your college decision, but they can help show how Caltech and UPenn compare in academic strength, reputation, and career outcomes. Here’s how the two schools rank across major lists:

Let’s examine each ranking more closely:

U.S. News (National Universities)

• Caltech: #11
• UPenn: #7

UPenn ranks higher in U.S. News mainly because it’s a large university with many majors and top professional programs, including a #1 business school. It has about 10,013 undergraduates and a strong four-year graduation rate of around 86%.

Caltech is much smaller, with about 987 undergraduates, and focuses almost entirely on science and engineering. Its four-year graduation rate is about 77%, and it’s best known for its small classes and research-driven academic environment.

Takeaway: If U.S. rankings matter most to you, UPenn comes out ahead for its wider range of majors and stronger student outcomes.

Times Higher Education (World University Rankings)

• Caltech: #7
• UPenn: #14

Times Higher Education (THE) focuses on research volume, citation impact, and international reputation. Caltech ranks higher because it’s a world leader in science and engineering, with over 50 research centers and about 90% of undergraduates involved in hands-on research.

UPenn is close behind at #14. With a research budget of about $2 billion in 2025, it’s one of the top research universities in the U.S., especially in medicine, engineering, and business, and operates across a much larger campus and student body.

Takeaway: If global research strength and international reputation in STEM are your priorities, Caltech has the edge.

QS World University Rankings

• Caltech: #10
• UPenn: #15

QS emphasizes employer reputation and academic influence. Caltech ranks five spots higher than UPenn overall but placed 3rd globally for graduate employability in 2026, compared to UPenn’s 64th. UPenn is still well respected worldwide, but Caltech holds a clear advantage in this ranking system.

Takeaway: If you care most about global career employability, Caltech performs better in the QS rankings.

Caltech vs UPenn: Academics

Caltech and UPenn both have strong academics, but your day-to-day experience at each school will feel very different. Here’s a look at the academic profile of admitted students, using the most recent available data:

UPenn reports a middle 50% SAT range of 1510–1570 and an ACT range of 34–36 for admitted students. Caltech, by contrast, doesn’t publish SAT or ACT averages. Instead, it uses a bucket system, grouping section scores into performance ranges rather than reporting exact numbers.

Caltech also doesn’t release GPA data for admitted students, while UPenn reports an average GPA of 3.9. That said, strong applicants to both schools usually earn near-perfect grades in challenging high school courses. We recommend aiming for an unweighted GPA close to 4.0.

Caltech academics

Caltech offers one of the most rigorous STEM educations in the world. All students complete the same core curriculum, with required courses in math, physics, chemistry, biology, and the humanities, regardless of their major.

Some of Caltech’s strongest majors include:

• Computer Science
• Mechanical Engineering
• Physics
• Electrical and Electronics Engineering
• Bioengineering and Biomedical Engineering

Caltech offers a very small academic environment, with a 3:1 student-to-faculty ratio, the lowest among U.S. universities. Classes are small, students work closely with professors, and there are fewer than 1,000 undergraduates on campus. The school also uses a quarter system, in which classes move quickly and cover a whole semester’s worth of material in just 10 weeks.

UPenn academics

UPenn offers a broad academic experience through its General Education Curriculum, which covers the arts, humanities, social sciences, and natural sciences. Students take classes across different fields, then dive deeper into their major and often apply what they learn through research, internships, and partnerships with organizations in Philadelphia.

Some of the most popular majors at UPenn include:

• Business, Management, and Marketing
• Biological and Biomedical Sciences
• Social Sciences
• Computer Science
• Engineering

UPenn has an 8:1 student-to-faculty ratio and follows a traditional semester system. Students can take part in research across many fields, and the school’s strong pre-professional culture also makes it easier to find career support and industry connections.

Not sure whether Caltech or UPenn is the better fit? Our Academic and Extracurricular Profile Evaluation & Roadmap helps you map out your classes, activities, and goals to stay competitive at either school.

Caltech vs UPenn: Campus Life

Campus life shapes your college experience just as much as academics. The overall environment and student atmosphere help determine what your day-to-day routine looks like at each school.

Here’s a quick look at how the two campuses compare:

Caltech campus life

Campus life at Caltech is small and centered on academics. Students get to know each other quickly, and the community feels close-knit and intimate rather than focused on a big social scene. The campus is located in Pasadena, a quiet suburb just outside Los Angeles.

Here’s what you can expect at Caltech:

• Residential life. Most students live on campus all four years, which helps create a closely connected community. Students are placed into one of eight houses, which serve as both their residence and main social group.
• Honor Code. Caltech runs on a strict honor code built on trust and fairness. Many exams are take-home, students can leave belongings unattended, and campus facilities are open 24/7. The rule is simple: no one should take unfair advantage of anyone else.
• Clubs and activities. Caltech has over 100 clubs and organizations. While fewer than at large universities, options range from robotics to niche groups like alpine skiing and the Cheese Society. About 25% of students also compete in NCAA Division III sports.
• Access to Los Angeles. While mostly in a residential area, Caltech is near downtown L.A. and offers easy access to museums, beaches, hiking trails, and many entertainment options. Students can easily explore the city when they want a change of pace.

UPenn campus life

Life at UPenn is shaped by its location in Philadelphia’s University City. The campus is part of the city, with hospitals, research centers, parks, and public transit nearby. At the same time, its mix of historic buildings and modern facilities gives it a clear college-campus feel.

Here’s what you can expect at UPenn:

• Residential life. All first-year students are required to live on campus in UPenn’s College Houses, which serve as smaller residential communities with shared dining, events, and social activities.
• Student organizations. With over 600 Penn clubs, students can join everything from academic orgs like Penn Labs and dance groups like Penn Masti to casual communities like the Penn Reads Book Club.
• Athletics and traditions. UPenn competes in the Ivy League and is known for its rivalry with Princeton, especially in basketball. Fun fact: the school is also home to the Penn Relays, the oldest and largest track and field competition in the U.S.
• Philadelphia location. Being in Philly means easy access to museums, restaurants, internships, and cultural events, while still enjoying a true campus environment. Penn also offers many ways for students to get involved in the local community.

Caltech vs UPenn: Cost of Attendance

Paying for college is an important part of choosing between private universities like Caltech and UPenn. Costs can vary across tuition, housing, and fees, so knowing how much you’ll need helps you make better decisions for your family and budget.

Here’s what one year at each school might cost you:

Overall, UPenn costs about $1,700 more per year, or roughly $6,800 over four years, before financial aid.

Caltech cost of attendance

Caltech estimates a total cost of attendance of about $93,912 per year for undergraduates. Tuition makes up the largest portion at $65,622, along with $2,586 in required fees. On-campus housing is estimated at $12,105, and meal costs average $8,886 per year.

Students should also budget around $1,428 for books and course materials, plus about $3,285 for personal expenses such as transportation, clothing, and daily necessities. Caltech allows a one-time computer purchase allowance to be added to the cost of attendance upon request.

Keep in mind that the listed fees don’t include the Caltech Student Health Insurance Plan, which students can waive if they already have comparable coverage. In addition, all first-year students pay a one-time $500 orientation fee on top of the standard costs.

UPenn cost of attendance

UPenn estimates an annual cost of attendance of $95,612. Tuition is $63,204, and required fees are $8,032. Housing is estimated at $13,132, and food costs average $6,744 per year.

Students should also plan for $1,412 for books and supplies, $1,080 for transportation, and $2,008 for personal expenses. However, book costs can be higher depending on your school: first-year Nursing students are estimated to spend $1,742 for the academic year, and Wharton students in second, third, and fourth year will average $2,350 for the academic year.

Health insurance isn’t included in the base estimate. Students without qualifying coverage are automatically enrolled in the Penn Student Insurance Plan (PSIP), and that cost is added to their total bill.

Caltech vs UPenn: Financial Aid and Scholarships

Understanding how financial aid works is important when choosing between Caltech and UPenn. Both schools offer strong need-based aid programs, supported by large endowments, to help make college more affordable.

Financial aid and scholarships at Caltech

Caltech meets 100% of demonstrated financial need for all admitted students. It’s need-blind for domestic applicants, including undocumented and DACA students who graduate from a U.S. high school, meaning your family’s finances aren’t considered in the admissions decision. For international students, Caltech uses a need-aware admissions process.

Once admitted, students receive aid based on family income. Most families earning under $100,000 (with typical assets) receive a no-loan package that covers tuition, fees, housing, and food. Families earning under $200,000 typically receive aid that covers full tuition.

Financial aid is made up mainly of scholarships and grants, which don’t need to be repaid, along with some loans and work-study options. Because of this structure, about 75% of Caltech students graduated debt-free in 2024.

Financial aid and scholarships at UPenn

UPenn meets 100% of the demonstrated financial need of admitted students and is also need-blind for U.S. citizens and permanent residents of the U.S., Canada, and Mexico.

In 2025, Penn expanded its aid through The Quaker Commitment, where financial aid packages include only grants, scholarships, and work-study—no student loans. Families earning under $75,000 (with typical assets) receive full coverage of tuition, fees, housing, and dining. Families earning up to $200,000 are guaranteed at least full tuition coverage, and often more.

All financial aid at UPenn is need-based, with no merit scholarships available. International students can also apply for aid, though their admissions process is need-aware. Together, Penn’s policies aim to limit student debt and help more graduates finish college without loans.

Final Verdict: Caltech or UPenn?

Choosing between Caltech and UPenn is less about which school is better and more about which environment fits you best. Looking at academics, campus life, costs, and financial aid can help you make a confident decision.

Choose Caltech if you want a very small and academically focused campus near Los Angeles with roughly 1,000 undergraduates and an extremely low 3:1 student-to-faculty ratio. Its curriculum centers on STEM, with strong requirements in math and science for all majors.

Choose UPenn if you want a large Ivy League university in a major East Coast city with a wide range of majors. Its hundreds of student clubs, strong athletic traditions, and pre-professional culture give students many ways to build skills and plan for future careers.

If you want a smaller school focused on science, Caltech may be the better option. If you prefer more majors and a large Ivy League campus in the city, UPenn may make more sense. Ultimately, the best choice is the school that fits how you learn, what you want to study, and how you want to spend your next four years.

Frequently Asked Questions

1. Which school is harder to get into?

Caltech is harder to get into. Its 3.8% acceptance rate is lower than UPenn’s and is the lowest in the country, meaning the school admits only a few hundred students each year. That said, UPenn is also extremely competitive, with a 4.9% acceptance rate, its lowest on record.

2. Does Caltech or UPenn offer better financial aid?

Which school offers “better” aid depends on your financial situation and specific aid package. Both schools meet 100% of demonstrated need and offer very strong financial aid. Caltech provides no-loan aid for many lower-income students, while UPenn offers clear guarantees for middle- and lower-income families through The Quaker Commitment.

3. How should I decide between Caltech and UPenn if I’m admitted to both?

Focus on fit. Choose Caltech if you prefer a small, STEM-focused school in California with an intense quarter system and early research opportunities. Choose UPenn if you want a broader range of programs, a pre-professional culture, and life in an Ivy League college in a major city.

Takeaways

• Caltech is more selective than UPenn, with a 3.8% acceptance rate compared to UPenn’s 4.9%, making Caltech the most selective university in the country.
• Caltech ranks higher in global rankings, which tend to emphasize reputation and employability, while UPenn ranks higher in U.S.-based rankings.
• Caltech is slightly less expensive at $93,912 per year compared to UPenn’s $95,612, but both schools offer strong need-based financial aid.
• Caltech offers a small 3:1 student-to-faculty ratio and a strong focus on STEM, while UPenn provides a wider range of majors and well-known pre-professional programs.
• A college admissions expert can help you sort through your options, understand the costs, and put together a strong application for either Caltech or UPenn.