About grading scales
A grading scale sets the percentage needed for each letter. The most common US scale is A for 90 and up, B for 80, C for 70 and D for 60, but schools and teachers set their own, so always check the policy for your class.
Common questions
What percentage is each letter grade?
On the standard scale, A is 90-100, B is 80-89, C is 70-79, D is 60-69 and F is below 60. Change the boxes above to match your school.
Is there one official US grading scale?
No. Districts and teachers set their own cut-offs, so the scale can differ between classes.