Weighted Grade Calculator
Use this weighted grade calculator to find your course grade when assignments have different weights. Enter your scores and see your percentage, letter grade, and GPA instantly.
About Owner
Henry Ethan is the owner of Grading Calculators Hub and a mathematics teacher with over 15 years of classroom experience. He has worked closely with students across different grade levels, helping them understand grading systems, scores, and academic performance. Every calculator and explanation on this site reflects real teaching experience and practical classroom needs.
How This Weighted Grade Calculator Works
In most courses, all assignments do not count the same. A final exam usually has more value than homework or quizzes. This weighted grade calculator applies the correct weight to each score and combines them into one final result.
You can enter grades as percentages, letter grades, or points. The calculator converts everything automatically and shows clear results.
What Is a Weighted Grade?
A weighted grade means each assignment affects the final grade based on its importance.
Example:
- Homework: 20%
- Midterm: 35%
- Final Exam: 45%
This grading method is common in U.S. schools and colleges because it reflects real course structure.
Read Latest Articles
Helpful guides and calculators explained in simple words
How to Calculate a Weighted Grade
Each grade is multiplied by its assigned weight. All results are added together.
Formula:
Plain: Weighted Grade = (w1 × g1) + (w2 × g2) + … + (wn × gn)
Where:
w = weight of the assignment
g = grade score
This calculator performs the math for you and reduces mistakes.
Example: Weighted by Percentage
A student has:
1) Homework: 90% (20%)
2) Midterm: 85% (35%)
3) Final Exam: 92% (45%)
Calculation:
(90 × 0.20) + (85 × 0.35) + (92 × 0.45)
= 89.15%
Final result:
89.2% → B+ → GPA 3.30
Example: Weighted by Letter Grades
This calculator also works when grades are entered as letters.
Example
The calculator converts letter grades into percentages.
- Homework: A = 95% (20%)
- Midterm: B+ = 88% (35%)
- Final Exam: B+ = 88% (45%)
Then it applies the weights:
- Homework: 95 × 20
- Midterm: 88 × 35
- Final Exam: 88 × 45
All values are added and divided by 100.
Result
- Final Percentage: 89.40%
- Letter Grade: B+
- GPA: 3.30
You do not need to convert letter grades yourself. The calculator handles this automatically.
Example: Weighted by Points
Scores entered as points:
1) Quiz: 18/20 (10%)
2) Assignment: 45/50 (30%)
3) Final Exam: 85/100 (60%)
Converted to percentages and weighted:
Final Grade = 87% → B+ → GPA 3.30
Find Additional Grade Needed (Target Average)
This feature shows the score you need on a remaining assignment or final exam to reach your target overall grade.
Example
Current grades:
Homework: 90% (20%)
Midterm: 85% (35%)
Final Exam: 45% weight (not graded)
Target average: 90%
Result:
Need 93.89% on remaining 45% weight.
Weighted vs Unweighted Grades
Unweighted grades treat all assignments the same. Weighted grades give more value to major exams.
Most schools use weighted grading because it gives a more accurate course result.
GPA Scales Used
This calculator supports common U.S. GPA scales:
4.0 scale (standard)
4.3 scale (includes A+)
5.0 scale (AP and Honors)
Your school may use slightly different cutoffs.
Target Average Feature
This feature shows the score you need on a remaining assignment or final exam.
Steps:
Enter completed grades and weights
Add the remaining exam without a grade
Enter your target percentage
Click Check
The required score appears instantly.
Why Students Use This Calculator
- Shows how each assignment affects the grade
- Helps plan study effort
- Removes guessing before finals
- Supports percentages, letters, and points
- Works on mobile, tablet, and desktop
When to Use Other Calculators
This grade calculator is best for tests based on wrong answers.
Use other tools when needed:
For basic percent math, use the Percentage Calculator
For simple math checks, use the Simple Calculator
For long-term academic results, use the Cumulative GPA Calculator
To convert GPA into letters, use the GPA to Letter Grade Converter
To grade tests and quizzes, use the EZ Grader.
For final course results, use the Final Grade Calculator
To calculate GPA directly, use the GPA Calculator
For advanced math, use the Scientific Calculator
Who Can Use This Tool
This weighted grade calculator is useful for:
- High school students
- College students
- Parents checking progress
- Teachers explaining grading
- Academic advisors planning GPA
Limitations
- Extra credit must be added manually
- Curved grading is not applied
- School rules may vary