Grade Predictor
Select your calculation mode and enter your grade details
Results & Actions
Calculate your results and view detailed analysis
Click "Calculate" to see your results here
Your calculated grade information will appear in this section
Your grade analysis will appear here after calculation
How the Calculations Work
This tool uses weighted average mathematics to provide accurate grade predictions. The Grade Predictor determines what scores you need on upcoming work, while the Grade Improvement Calculator shows how extra assignments affect your final grade.
Practical Academic Planning
Use these calculations for exam preparation strategies, evaluating extra credit opportunities, maintaining scholarship requirements, planning for academic standing, and making informed decisions about course withdrawals.
Completely Private
All calculations happen right in your web browser - no grade information is ever sent to our servers. You can use this tool with complete confidence that your academic data remains private.
Understanding Grade Calculations
Grade Predictor: Determining What You Need
The Grade Predictor helps you answer the question every student faces as the semester progresses: "What score do I need to get on my remaining work?" This calculation takes into account your current performance and how much weight future assignments carry.
Here's the thinking process behind it: First, we figure out how many grade points you've already earned based on your current average and the weight of completed work. Then we calculate how many total points you need to reach your target grade. The difference between these two numbers tells us how many points must come from your remaining assignments. Finally, we divide by the weight of that remaining work to find the specific percentage you need to achieve.
Grade Improvement: Evaluating Extra Work
The Grade Improvement calculator addresses a different academic question: "How will this extra assignment affect my final grade?" This is particularly useful when considering optional extra credit, retaking a poor exam, or deciding whether a makeup assignment is worth the effort.
The calculation approach here is slightly different. We determine what portion of your grade remains unchanged (everything except the new assignment) and what portion will be replaced or added. The unchanged portion maintains your current performance level, while the new portion brings in fresh points based on your expected score. Combining these gives you a realistic projection of where you'll stand after completing the additional work.
Both calculations rely on the same fundamental principle: grades are weighted averages where different assignments contribute different amounts to your final result. Understanding this weighting system is key to making informed academic decisions throughout the semester.
Grade Calculation Formulas
Finding Required Scores
Current Grade: Your average on completed work (convert 85% to 0.85)
Completed Weight: How much already-graded work counts toward your final grade (convert 70% to 0.70)
Remaining Weight: How much upcoming work counts toward your final grade (convert 30% to 0.30)
Calculating Grade Improvements
Unchanged Weight: What portion of your grade stays the same (100% - new assignment weight)
Expected Score: The percentage you expect on the new assignment (convert 95% to 0.95)
New Assignment Weight: How much the extra work affects your grade (convert 5% to 0.05)
Remember: Convert all percentages to decimal form before calculating (divide by 100).
Real-World Grade Scenarios
Planning for Final Exams
Points needed: 0.90 - 0.616 = 0.284 (28.4%)
Required exam score: 0.284 ÷ 0.30 = 0.9467
Extra Credit Decision
New portion: 0.92 × 0.10 = 0.092 (9.2%)
Combined grade: 0.711 + 0.092 = 0.803
Realistic Goal Setting
Points needed: 0.85 - 0.656 = 0.194 (19.4%)
Required average: 0.194 ÷ 0.20 = 0.97
Making Smart Academic Decisions
Grade predictions aren't just about numbers - they're about making informed decisions that affect your academic journey. Understanding where you stand and what's possible helps you allocate study time effectively, set realistic expectations, and communicate proactively with instructors.
When Grade Predictions Matter Most
Certain points in the semester call for careful grade analysis. Midterm season is an ideal time to assess your standing and plan for the second half. Before final exam registration deadlines, you need to know if your goals are achievable. When extra credit opportunities arise, you should evaluate whether the time investment matches the potential grade impact. Scholarship renewal periods require understanding exactly what grades you need to maintain funding.
Academic advising appointments become more productive when you arrive with specific calculations about what you need to achieve. Course withdrawal decisions should be based on realistic assessments of what's mathematically possible, not just hopes or fears.
A Semester Planning Example
Let's consider Sarah, who's taking a psychology course with this grading structure:
- Weekly quizzes: 15% of final grade (Current average: 92%)
- Research paper: 25% of final grade (Scored: 84%)
- Midterm exam: 30% of final grade (Scored: 76%)
- Final exam: 30% of final grade (Upcoming)
Sarah's weighted current grade: (0.92 × 0.15) + (0.84 × 0.25) + (0.76 × 0.30) = 0.138 + 0.21 + 0.228 = 0.576 (57.6 points out of 70 possible so far).
If Sarah wants a B+ (87%) in the course:
- Total points needed: 87
- Points already earned: 57.6
- Points needed from final: 87 - 57.6 = 29.4
- Required final exam score: 29.4 ÷ 0.30 = 98%
Seeing that 98% is unrealistic, Sarah considers alternatives:
- Aiming for a B (83%) requires 84.7% on the final - challenging but achievable
- Asking about extra credit opportunities could provide needed points
- Focusing study efforts on final exam topics worth the most points
This analysis helps Sarah have a productive conversation with her professor about her goals and options, rather than just worrying about her grade.
Interpreting Your Results
When you get your calculation results, consider what they mean in practical terms. Required scores above 100% indicate you may need to adjust your expectations or seek extra credit. Scores between 95-100% suggest you need nearly perfect performance - possible but requiring exceptional effort. Results in the 85-94% range are challenging but achievable with focused preparation. Scores below your current average mean you're on track to exceed your goal.
For grade improvement calculations, changes less than 0.5% might not justify significant time investment unless they affect letter grade boundaries. Improvements of 1-2% are meaningful and often worth moderate effort. Gains of 3% or more can substantially change your academic standing and are usually worth considerable effort.
Remember that these calculations assume accurate knowledge of assignment weights and current averages. Small errors in either can affect results, so always verify with your course syllabus and current grade reports. When in doubt, conservative estimates (slightly lower current grades) provide safer planning margins.