About Biology at California Institute of Technology (Caltech)
Biology covers molecular and cell biology, genetics, ecology, neuroscience and biotechnology, and leads to careers in research, healthcare, biotech and pharmaceuticals.
At California Institute of Technology (Caltech) (QS World University Rankings 2026: #10) in Pasadena, Biology is one of the subject areas international students choose most. Caltech is a small, highly selective institute focused on science and engineering.
Degree levels for Biology
- Bachelor’s — typical length in the US: 4 years
- PhD — typical length in the US: usually 5–6 years
Program names, specialisations and exact length differ by department — check the official program page before applying.
Admission requirements for Biology at Caltech
- Bachelor’s: apply through the Common App with transcripts, essays, recommendations and English scores.
- Master’s / PhD: a relevant bachelor’s degree, statement of purpose, recommendations, CV and English scores; some programs ask for the GRE. PhD applicants should show research experience and interests.
- English: TOEFL iBT around 100 or IELTS Academic 7.0+ is typically expected (requirements vary by school and program).
Fees and funding
University tuition (undergraduate, university-wide): Approx. $62,000 – $70,000 per year (undergraduate tuition; varies by program). Graduate and professional fees for Biology are set separately by the school. PhD students are usually funded through fellowships and teaching or research assistantships. Need-based financial aid for some international undergraduates (need-aware admission); graduate funding through fellowships and assistantships.
Careers and work after graduation
F-1 graduates can apply for up to 12 months of OPT. Most Biology degrees are STEM-designated, so graduates are often eligible for the 24-month STEM OPT extension.
Apply for Biology at Caltech with GIEC Global
GIEC Global offers free counselling, program shortlisting, SOP guidance, application support and F-1 visa assistance for Biology at California Institute of Technology (Caltech).
