calculationType
Grade Calculator
Calculate test scores, assignment grades, and academic percentages. Convert points to percentages and determine letter grades.
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Grade Calculator | Calculate Test Scores & Assignment Percentages
Calculate test scores, assignment grades, and academic percentages. Convert points to percentages and determine letter grades.
Key values: 38/50 · = 76% · letter grade: C+
Final Exam: 142 out of 200 Points
A 200-point final exam. A student scores 142. What is their percentage and letter grade?
Key values: 142/200 · = 71% · letter grade: C
Grade Percentage Formula
This is the “what percentage is X of Y” formula applied to academic scoring. Enter the points you earned and the maximum points possible.
Standard Letter Grade Scale
| Percentage | Letter | GPA (4.0) |
|---|---|---|
| 93-100% | A | 4.0 |
| 90-92% | A− | 3.7 |
| 87-89% | B+ | 3.3 |
| 83-86% | B | 3.0 |
| 80-82% | B− | 2.7 |
| 77-79% | C+ | 2.3 |
| 73-76% | C | 2.0 |
| 70-72% | C− | 1.7 |
| 67-69% | D+ | 1.3 |
| 60-66% | D | 1.0 |
| Below 60% | F | 0.0 |
Grade scales vary by institution. Some schools use a 10-point scale (A = 90+) while others use a 7-point scale (A = 93+). Always check your school's specific scale.
Weighted Grade Calculation
When assignments have different weights (e.g., exams worth more than homework):
Example: Homework (20%) = 95%, Midterm (30%) = 82%, Final (50%) = 88%:
Frequently Asked Questions
How do I calculate my test grade as a percentage?
Divide the points you earned by the total possible points and multiply by 100. For example, 38 out of 50 = .
What letter grade is 85%?
On the standard US grading scale (7-point): 83-86% is a B. On a 10-point scale: 80-89% is a B. Scales vary by institution, so always check your school's specific scale.
How do I calculate a weighted grade?
Multiply each score by its weight, sum the products, and divide by the total weight. For example: Homework (20%) = 95%, Midterm (30%) = 82%, Final (50%) = 88% gives .
What GPA does a B+ correspond to?
On the standard 4.0 GPA scale, a B+ (87-89%) corresponds to a 3.3 GPA. An A is 4.0, B is 3.0, C is 2.0, D is 1.0, and F is 0.0, with +/− modifiers adding or subtracting 0.3.
How do I find what score I need on a final exam to get a certain grade?
Set up the weighted average equation and solve for the unknown score. If you need 80% overall and the final is worth 50%: (current weighted total + final 0.50) = 80. Solve for the final score needed.
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