California Institute of Technology

Official admissions.caltech.edu: TOEFL 100 / IELTS 7 / DET 120 stated as required minimums for applicants without English-medium secondary schooling. SAT or ACT required (from Fall 2025 entry) — unusual among elite US peers in this catalog for reinstating a hard testing requirement while other schools stay test-optional. No GPA cutoff otherwise.

Official gradoffice.caltech.edu: Caltech does NOT strictly require an English test if the applicant can otherwise demonstrate proficiency, and has no minimum GPA (transcripts read holistically, international GPAs explicitly not converted to US scale). Where a test is submitted, commonly cited figures are IELTS 7.0 (no subscore below 6.5) / TOEFL iBT 100 — used here as orientation, not a hard official cutoff.

Official gradoffice.caltech.edu: not formally required, but applicants must demonstrate strong English capability; commonly cited minimums are TOEFL 100 / IELTS 7 (Duolingo and PTE also accepted). Exempt with a prior BS/Master's from an English-medium institution. No official minimum GPA.