What is a normal grade distribution?

Many institutions see 15-25% A, 30-40% B, 20-30% C, and under 10% D/F combined for well-calibrated courses.

Is grade inflation a concern?

If over 50% of students receive A grades, it may indicate grade inflation, which reduces the ability to distinguish performance levels.

Bimodal distributions suggest some students may need additional support. Uniformly low grades may indicate instructional issues.

Enter the number of students earning each letter grade to see the distribution percentages and overall class GPA.

Number of A Grades

Number of B Grades

Number of C Grades

Number of D Grades

Number of F Grades

Class GPA

2.80

A Percentage26.7 %

B Percentage40.0 %

C Percentage23.3 %

Pass Rate (D or better)96.7 %

Total Students30

Class GPA vs Number of A Grades

Grade distribution shows how student performance is spread across letter grades.

Percentage = Count at Grade / Total Students x 100

Class GPA = (A x 4 + B x 3 + C x 2 + D x 1 + F x 0) / Total Students

A healthy distribution is roughly bell-shaped. Heavy concentrations at extremes may indicate assessment or instruction issues.

A class of 30: 8 A's, 12 B's, 7 C's, 2 D's, 1 F.