California Institute of Technology

California Institute of Technology admitted 2.6% of applicants in its most recent reported class. That’s one of the lowest rates in the country. It’s a reach for every applicant, no matter how strong.

The real question isn’t your odds. It’s your move. That’s where Spike comes in. It reads your profile against what California Institute of Technology actually rewards, then tells you what to do next.

Research is everywhere — many undergrads work at JPL, Caltech's NASA laboratory.

A demanding required core in math, physics, chemistry and biology.

• NASA's JPLMars rovers · Deep-space probes · Undergrads work there
• The CoreMath · Physics · Chemistry · Biology
• 80% participateSURF · NASA fellowships · From freshman year

Verified from thisis.caltech.edu and admissions.caltech.edu.

• Next deadlineNovember 1, 2026 (REA)
• Regular decisionJanuary 5, 2027
• TestingRequired (2026 cycle)
• Recommendations2 letters
• Personal essayRequired
• ApplicationCommon App

Verified from caltech.edu.

The current prompts, straight from the application. They change year to year. Most guides you’ll find are a cycle behind.

• If you had to choose an area of interest or two today, what would you choose? Why did you choose your proposed area of interest? If you selected 'other', what topics are you interested in pursuing?

  Up to 200 words

• Caltech students bring more than academic ability to the communities they join. What is something you would be excited to do, share, teach, make, start, or contribute as part of the Caltech community?

  Up to 150 words

• Tell us about a time your learning in STEM was shaped by another person or group — either because you needed help, offered help, changed your thinking through collaboration, or contributed to someone else's understanding. What did that experience teach you about learning and working with others?

  Up to 200 words

• Tell us about a time your approach to a STEM problem, concept, or project mattered as much as the outcome. How did you work through uncertainty or persist creatively in tackling the problem? What would you still defend about your process, regardless of the outcome?

  Up to 200 words

• Regardless of your STEM interest listed above, take this opportunity to nerd out and talk to us about whatever STEM rabbit hole you have found yourself falling into. Be as specific or broad as you would like.

  Up to 200 words

• Tell us about a STEM question, problem, idea, or project that has held your attention over time. What drew you to it, how have you pursued it, and what do you still want to understand?

  Up to 200 words

• Tell us about something you created, tested, repaired, modeled, coded, built, or redesigned. What problem were you trying to solve and what did the process reveal to you?

  Up to 200 words

• Why did you choose your proposed area of interest? If you selected 'other', what topics are you interested in pursuing?

  Up to 200 words

Every prompt, with how to approach each →

Verified from caltech.edu.

The sticker price is about $86,886. That isn’t what most families pay. After need-based aid, the average net price is $16,075.

Meets 100% of need; the average grant is about $73,000 a year, often loan-free.

Ten years after enrolling, graduates earn a median of $128,566.

Verified from caltech.edu and the U.S. Department of Education.

• Computer Science29% of degrees
• Mechanical Engineering15% of degrees
• Physics11% of degrees
• Biomedical/Medical Engineering8% of degrees
• Electrical, Electronics, and Communications Engineering7% of degrees
• Applied Mathematics6% of degrees

Popular: Computer Science · Chemical Engineering · Physics

“Brilliant misfits — hard-core STEM kids who are also musicians, athletes and artists.”

Eight undergraduate houses create tight-knit communities amid red-tile roofs and courtyards.

Is California Institute of Technology test-optional?

No. For the 2026 application cycle, California Institute of Technology requires SAT or ACT scores from first-year applicants.

How hard is it to get into California Institute of Technology?

Very hard. California Institute of Technology admits 2.6% of applicants. Treat it as a reach for every applicant.

When is the California Institute of Technology application deadline?

The next deadline is November 1, 2026 (REA). Regular Decision closes January 5, 2027.

How much does California Institute of Technology cost?

The list price is about $86,886. After aid, families pay $16,075 on average. California Institute of Technology meets full demonstrated financial need.

Is California Institute of Technology worth it?

Graduates earn a median of $128,566 ten years after enrolling. 94% of students graduate within six years. Value depends on your aid offer and your goals. That’s what Spike helps you weigh.