Free Grade Calculator - Weighted GPA & Letter Grades
Calculate weighted grades, GPA, and letter grades with our free online grade calculator. Perfect for students tracking their academic performance.
Features of Our Grade Calculator
- Weighted grades - Assign different weights to assignments
- GPA calculation - Standard 4.0 scale
- Letter grades - Automatic A/B/C/D/F conversion
- Add/remove items - Flexible assignment list
- Weight validation - Warns if weights don't total 100%
- Instant results - Real-time calculation
How to Calculate Weighted Grades
- Enter assignment names (tests, homework, quizzes, etc.)
- Enter the score for each assignment (as percentage)
- Assign weights (should total 100%)
- View your weighted average, letter grade, and GPA
Grading Scale
| Percentage | Letter Grade | GPA |
|---|---|---|
| 90-100% | A | 4.0 |
| 80-89% | B | 3.0 |
| 70-79% | C | 2.0 |
| 60-69% | D | 1.0 |
| 0-59% | F | 0.0 |
Understanding Weighted Grades
In weighted grading, different assignments contribute differently to your final grade:
| Assignment Type | Weight | Score | Contribution |
|---|---|---|---|
| Tests | 40% | 85% | 34 points |
| Homework | 20% | 95% | 19 points |
| Quizzes | 15% | 80% | 12 points |
| Final Exam | 25% | 90% | 22.5 points |
| Total | 100% | 87.5% |
How Weighted Average Works
Formula: Weighted Average = Σ(Score × Weight) / Total Weight
For each assignment, multiply the score by its weight, sum all results, then divide by total weight (usually 100).
FAQs About Grade Calculation
What if my weights don't add up to 100%?
The calculator will still work, calculating based on proportional weights. However, this may not reflect your actual course grading.
What's the difference between weighted and unweighted GPA?
Weighted GPA gives extra points for advanced courses (AP, Honors). Our calculator shows standard unweighted GPA on a 4.0 scale.
How do I figure out what I need on the final?
Calculate your current grade without the final, then work backwards to see what final exam score you need.
Can I use this for multiple classes?
This calculates one course at a time. Use it separately for each class.
Common Weighting Systems
| Type | Tests | Homework | Participation | Final |
|---|---|---|---|---|
| Exam Heavy | 60% | 15% | 5% | 20% |
| Balanced | 35% | 30% | 10% | 25% |
| HW Heavy | 25% | 45% | 15% | 15% |
Use Cases
- Track course grades - Monitor your current standing
- Goal planning - Set targets for upcoming assignments
- What-if scenarios - See how future grades affect your GPA
- Report card prep - Estimate final grades
Why Use Our Grade Calculator?
- Free to use - No registration needed
- Accurate calculations - Proper weighted average
- Easy to modify - Add/remove assignments easily
- GPA included - See 4.0 scale equivalent
- Mobile friendly - Use on any device