In recent years, although IELTS has been recognized by thousands of schools and institutions in the United States, some universities only recognize the IELTS scores of undergraduates or graduate students, while others only accept the IELTS scores of some colleges. So many choices will still be lost for applicants.
Second, American universities have higher requirements for IELTS scores.
According to the admission requirements of 20 schools in the United States, schools in TOP50 have higher requirements for IELTS, while majors with higher requirements for writing usually need to reach IELTS 7.5. Applying for undergraduate courses in the United States usually requires IELTS 6.0, and graduate students must have at least 6.5.
Generally speaking, IELTS score of 7 is equivalent to TOEFL 100, but usually the school will give priority to applicants with TOEFL 100.