Grade Calculator
Calculate your current grade, find out what score you need on your final exam, and see how individual assignments affect your overall grade.
How to Use the Calculator
- Use the Grade Calculator tab to enter your assignment scores and weights to see your current overall grade. The calculator will automatically notify you if weights are unbalanced.
- Use the Final Exam Calculator to find exactly what score you need on your final exam to achieve your target course grade based on what you already have.
- Use the Point System if your course uses total points rather than percentages to structure grading.
Example Examples
Grade Calculator (Tab 1)
- Homework (85%, 20% weight) + Midterm (78%, 30% weight) + Lab (92%, 20% weight) + Project (88%, 30% weight)
- Weighted Grade: 85.1% = B
Final Exam Calculator (Tab 2)
- Current Grade: 82% (Worth 70% of total) | Final Weight: 30% | Target Grade: 90%
- Needed on Final: 108.67% — Not mathematically possible
Frequently Asked Questions
How is a weighted grade calculated?
A weighted grade multiplies each assignment score by its percentage weight then adds all products together. For example a homework score of 85% with 20% weight contributes 17 points (85 x 0.20) to your final grade. Add all weighted scores together to get your overall grade. This ensures that more important assignments like finals affect your grade more than smaller assignments.
What score do I need on my final exam?
Use the Final Exam Calculator tab. Enter your current grade the percentage of your total grade already determined and your target grade. The formula calculates the score needed on the final as (Target - Current x Current Weight) divided by Final Weight. If the result exceeds 100% the target grade is mathematically impossible based on the final exam alone.
What is the difference between weighted and unweighted grades?
An unweighted grade simply averages all scores equally. A weighted grade assigns different importance to different assignments. Most college courses use weighted grading where exams count more than homework. Always check your syllabus to see how your final grade is calculated — weighted or unweighted makes a significant difference in what score you need on remaining assignments.
How do I convert percentage grades to letter grades?
The standard US grading scale is: 93-100 is A, 90-92 is A-, 87-89 is B+, 83-86 is B, 80-82 is B-, 77-79 is C+, 73-76 is C, 70-72 is C-, 67-69 is D+, 63-66 is D, 60-62 is D-, and below 60 is F. Some schools use different cutoffs — always check your institution's official grading scale.
Can I still pass if I need over 100% on my final?
If you need more than 100% on your final exam it is mathematically impossible to reach your target grade through the final alone. Options include asking your professor about extra credit opportunities completing all remaining assignments perfectly and focusing on doing as well as possible on the final to maximize your actual final grade even if it falls short of your target.