Calculation Mode
Assignments & Grades
Total weight: 100%
Grade Breakdown
Actions
Letter Grade Scale
A+
97%+
A
93%+
A-
90%+
B+
87%+
B
83%+
B-
80%+
C+
77%+
C
73%+
C-
70%+
D+
67%+
D
63%+
F
0%+
Your current grade of 69.0% = D+
Your Grade
Current Grade
69.0%
D+
Needs improvement
Quick Answer
To calculate weighted grades: multiply each grade by its weight percentage, then sum. Formula: (Grade1 x Weight1) + (Grade2 x Weight2) + ... For example, if homework (20%) is 85 and exams (80%) are 90: (85 x 0.20) + (90 x 0.80) = 17 + 72 = 89% overall. To find the final exam score needed: (Target Grade - Current Weighted Grade) / Final Exam Weight.
Key Facts
- Weighted Average = Sum of (Grade x Weight) for all categories
- Common weights: Tests 40-60%, Homework 10-20%, Projects 15-25%, Participation 5-10%
- Letter grades: A = 90-100%, B = 80-89%, C = 70-79%, D = 60-69%, F = below 60%
- Some schools use plus/minus: A+ = 97-100, A = 93-96, A- = 90-92
- Final exam weight is typically 15-30% of total grade
- Extra credit can sometimes push grades above 100%
- Drop lowest score policies exclude your worst grade from calculation
- Curved grades are adjusted based on class performance
Frequently Asked Questions
How do I calculate my weighted grade?
For weighted grades, multiply each assignment percentage by its weight, sum all weighted scores, then divide by total weight. Example: Test (40%) = 85%, Homework (30%) = 90%, Final (30%) = 80%. Grade = (85×40 + 90×30 + 80×30) ÷ 100 = 85%.
What grade do I need on my final to get an A?
Use this formula: Needed = (Desired Grade - Current × Weight Earned) ÷ Final Weight. For example, if you have 85% on 70% of the course and want 90%, you need: (90 - 85×0.7) ÷ 0.3 = 101.7%. Sometimes the desired grade isn't achievable.
What is the difference between weighted and unweighted grades?
Unweighted (point-based): All points count equally. 90/100 on a test and 9/10 on homework both contribute the same per point. Weighted: Categories have different importance. A test worth 50% affects your grade more than homework worth 10%.
How are letter grades typically assigned?
Standard grading scale: A = 90-100%, B = 80-89%, C = 70-79%, D = 60-69%, F = below 60%. Some schools use plus/minus grades (A+, A, A-). Cutoffs may vary by institution - check your syllabus.
Can extra credit raise my grade above 100%?
Yes, if your teacher allows it. Extra credit adds points beyond the maximum possible. A grade over 100% is possible but may be capped. This calculator shows the raw percentage including any extra credit.