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Colleges report GPA (grade point average) on a 4.0 scale. The top grade is an A, which equals 4.0. This is the standard scale at most colleges, and many high schools use it. To convert your GPA to a 4.0 scale: Letter Grade. Percent Grade. 4.0 Scale.
Flesch-Kincaid grade level formula: 0.39 x (words/sentences) + 11.8 x (syllables/words) - 15.59. Both Flesch-Kincaid reading ease and grade level use the same core metrics: word length and sentence length. But they correlate inversely.