A 3.5 GPA is equivalent to a B+ letter grade on a 4.0 GPA scale. It is also equivalent to a percentile of 90%, which is a grade of B+ or A-, depending on the grading scale used by the school. A 3.5 GPA is considered a good GPA, as it is above the national average of 3.0. It is also competitive for many selective universities. A 3.5 GPA makes a high school student eligible to apply to even the most prestigious institutions. However, it may not guarantee admission to highly selective colleges, as admissions committees consider the entire application when making their decisions, including test scores, extracurricular activities, recommendations, and essays.