Test Grade Calculator
A letter grade represents a range of percentages or points that reflect how well you performed on a test or in a course.
To calculate your percentile test score, simply enter the total number of questions and then input either the number of correct or incorrect answers. The calculator will automatically compute your score and provide you with the corresponding letter grade.
| Right | Wrong | Percentage | Grade |
Grade Scale System
Match Your Percentage to a Grade Scale.
Some schools add “+” or “–” to be more precise. Here’s a typical version:
Example: Score = 82% → B−
| Letter grade | Percentile % |
|
A+ |
97-100 |
|
A |
93-96 |
|
A- |
90-92 |
|
B+ |
87-89 |
|
B |
83-86 |
|
B- |
80-82 |
|
C+ |
77-79 |
|
C |
73-76 |
|
C- |
70-72 |
|
D+ |
67-69 |
|
D |
63-66 |
|
D- |
60-62 |
|
F |
Below 60 |
Most schools use theA–F grading scale , but the cutoffs may vary. Here’s a common U.S. grading scale:
| Letter grade | Percentile % |
|
A |
90 – 100% |
|
B |
80 – 89% |
|
C |
70 – 79% |
|
D |
60 – 69% |
|
F |
Below 60% |