Average Grade Calculator - Weighted Grade Calculator
Calculate your weighted average grade from multiple assignments, tests, and exams. Support for percentages, letter grades, and points-based grading systems.
Enter grades and weights:
Find additional grade needed to get average grade of
What is a Weighted Average Grade Calculator?
A Weighted Average Grade Calculator is a tool that helps students, teachers, and parents calculate the overall grade for a course by considering different weights for various assignments, tests, quizzes, and exams. Unlike a simple average, a weighted average gives more importance to assignments with higher weights, providing a more accurate representation of academic performance.
For example, if your final exam is worth 40% of your grade and homework is worth 10%, the weighted average calculator ensures that your final exam score has four times the impact on your overall grade compared to homework. Once you know your course grades, you can use our GPA calculator to calculate your overall Grade Point Average across all courses.
Our calculator supports three different grading formats:
- Percentage: Enter grades as percentages (e.g., 85%, 92%, 78%)
- Letters: Enter grades as letter grades (e.g., A, B+, C-)
- Points: Enter grades as points earned out of maximum points (e.g., 45/50, 38/40)
How to Calculate Weighted Average Grade
Select Your Grade Format
Choose between Percentage, Letters, or Points based on how your grades are recorded.
Enter Your Grades
Input each assignment, test, or exam grade along with its weight (importance).
Assign Weights
Enter the weight for each grade. Weights can be percentages (e.g., 20%, 30%) or decimal values (e.g., 0.2, 0.3).
View Your Weighted Average
The calculator automatically computes your weighted average grade, showing both percentage and letter grade.
Calculate Target Grade (Optional)
Enter your desired final grade to see what you need on remaining assignments.
Weighted Average Formula
The weighted average is calculated using this formula:
Example Calculation:
- • Homework: 85% (weight: 20%)
- • Midterm: 78% (weight: 30%)
- • Final Exam: 92% (weight: 50%)
Weighted Average = (85 × 0.20 + 78 × 0.30 + 92 × 0.50) ÷ (0.20 + 0.30 + 0.50)
Weighted Average = (17 + 23.4 + 46) ÷ 1.0
Weighted Average = 86.4%
Example Calculations
Percentage Example
| Assignment | Grade | Weight |
|---|---|---|
| Quizzes | 88% | 15% |
| Homework | 92% | 25% |
| Midterm | 81% | 25% |
| Final Exam | 89% | 35% |
| Average | 87.75% (B+) | |
Letter Grades Example
| Assignment | Grade | Weight |
|---|---|---|
| Essays | A- | 30% |
| Participation | A | 10% |
| Midterm | B+ | 25% |
| Final Paper | A | 35% |
| Average | 91.5% (A-) | |
Comparison: Simple vs. Weighted Average
Simple Average
All grades have equal importance
Formula: Sum of grades ÷ Number of grades
Example:
(85 + 78 + 92) ÷ 3 = 85%
Best for: When all assignments are equally important
Weighted Average
Different grades have different importance
Formula: (Grade × Weight) for each, then sum ÷ Total weight
Example:
(85×20% + 78×30% + 92×50%) = 86.4%
Best for: When assignments have different weights (most courses)
Why Use a Weighted Average Calculator?
✓ Accurate Grade Calculation
Reflect the true importance of each assignment in your final grade.
✓ Plan Your Study Strategy
Know which assignments to prioritize based on their impact on your grade.
✓ Set Realistic Goals
Calculate what grade you need on remaining assignments to reach your target.
✓ Multiple Input Formats
Support for percentages, letter grades, and points-based systems.
✓ Save Time
Avoid manual calculations and reduce errors with automated computation.
✓ Track Progress
Monitor your academic performance throughout the semester in real-time.
Frequently Asked Questions
What's the difference between weighted and unweighted grades?
An unweighted grade treats all assignments equally (simple average), while a weighted grade gives different importance to different assignments based on their weight. For example, a final exam might be worth 40% while homework is only 10%.
How do I know the weights for my assignments?
Check your course syllabus - teachers typically outline the grading breakdown there. Common weights are: homework (10-20%), quizzes (10-15%), midterm (20-30%), final exam (30-40%), and participation (5-10%).
Can weights add up to more than 100%?
No, the total weight should equal 100% (or 1.0 in decimal form). If your weights don't add up to 100%, the calculator will normalize them proportionally to ensure accurate results.
What if I don't know my grade yet on some assignments?
You can use the Target Grade feature to calculate what you need on remaining assignments. Simply enter your current grades and their weights, then specify your desired final grade. For more specific calculations about what you need on your final exam, check out our final grade calculator.
How are letter grades converted to percentages?
We use the standard conversion: A=93%, A-=90%, B+=87%, B=83%, B-=80%, C+=77%, C=73%, C-=70%, D+=67%, D=63%, D-=60%, F=50%. Some schools may use slightly different values.
Can I calculate grades for multiple classes?
Yes! You can use this calculator for each of your classes separately. We recommend saving each class calculation with a descriptive name so you can track all your courses.
What's the best way to use the Points calculator?
The Points calculator is perfect when your grades are given as "points earned out of total points" (e.g., 45/50). Enter the points you earned, the maximum points possible, and the weight for each assignment.
How accurate is this calculator?
Our calculator uses precise mathematical formulas to ensure 100% accuracy. However, different schools may use different grading scales or rounding methods, so always verify with your institution's grading policy.
Tips for Managing Your Grades
1. Update Grades Regularly
Add new grades as soon as you receive them to keep an accurate picture of your performance.
2. Focus on High-Weight Assignments
Prioritize studying for assignments with higher weights - they have the biggest impact on your final grade.
3. Calculate "What-If" Scenarios
Use the target grade feature to see what you need on upcoming assignments to reach your goal.
4. Verify Your Syllabus Weights
Double-check that the weights you enter match your course syllabus exactly.
5. Save Your Calculations
Use the save feature to keep track of your grades throughout the semester.
6. Don't Ignore Low-Weight Items
Even though some assignments are worth less, completing them all helps maintain a strong overall grade.
7. Plan Ahead for Finals
Calculate early what grade you need on finals to achieve your target - gives you time to prepare.
8. Compare Across Courses
Calculate grades for all your classes to identify where you need to focus more effort.
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