TOEFL 60 to IELTS
TOEFL iBT 60 is the bottom of the 60–78 range, which converts to IELTS 6.0 (CEFR B2). Read the other way, IELTS 6.0 covers that whole TOEFL range, so 60 sits at its weakest edge. The same band is PTE Academic 50–57 and Duolingo 95–105. Many bachelor's courses accept 6.0 overall, but competitive and postgraduate programs usually start a band higher, at IELTS 6.5.
TOEFL 70 to IELTS
TOEFL iBT 70 also converts to IELTS 6.0: the concordance maps everything from 60 to 78 onto that one band, so 70 and 78 give the same estimate. IELTS 6.0 equals PTE Academic 50–57, Duolingo 95–105, and CEFR B2, upper-intermediate. To move up to IELTS 6.5 you need TOEFL 79, the first score in the next band.
TOEFL 79 to IELTS
TOEFL iBT 79 is the first score in the 79–93 band, so it converts to IELTS 6.5, one half-band above TOEFL 78. Reversed, IELTS 6.5 covers TOEFL 79 through 93, PTE Academic 58–64, and Duolingo 105–120, all at CEFR B2. 6.5 overall is the most commonly listed minimum for taught master's courses, which makes 79 the score worth clearing first.
TOEFL 80 to IELTS
TOEFL iBT 80 converts to IELTS 6.5, sitting just inside the 79–93 band rather than at the top of it. The same band is PTE Academic 58–64, Duolingo 105–120, and CEFR B2. Because 80 and 93 both return 6.5, a school asking for IELTS 7.0 wants TOEFL 94 or better; check the number the program publishes for your test.
TOEFL 90 to IELTS
TOEFL iBT 90 still converts to IELTS 6.5, not 7.0: the concordance runs 6.5 from TOEFL 79 all the way to 93. PTE Academic 58–64 and Duolingo 105–120 sit in the same band, at CEFR B2. IELTS 7.0 starts at TOEFL 94, so a 90 falls just short of the band most competitive master's programs ask for.
TOEFL 100 to IELTS
TOEFL iBT 100 converts to IELTS 7.0, near the top of the 94–101 band. The equivalent scores are PTE Academic 65–72 and Duolingo 120–130, at CEFR C1, advanced. 7.0 is the threshold most graduate programs in the US, UK, and Australia set for direct admission, and it is usually enough to skip a pre-sessional English course.
TOEFL 110 to IELTS
TOEFL iBT 110 converts to IELTS 8.0, the first score in the 110–114 band. In the other direction, IELTS 8.0 equals PTE Academic 79–82 and Duolingo 140–150, at CEFR C1. Very few programs require 8.0, so at this level the score is no longer the constraint: it clears every published English threshold and adds nothing further to your application.
TOEFL 120 to IELTS
TOEFL iBT 120 is a perfect score and converts to IELTS 9.0, the top band, alongside PTE Academic 86–90 and Duolingo 155–160 at CEFR C2. Anything from 118 to 120 maps to the same 9.0. No university requires it, and admissions readers treat 120 the same as the scores that already clear their threshold, so effort is better spent elsewhere.