Skip to content

Grade Predictor

Select your calculation mode and enter your grade details

Choose between predicting future grade requirements or calculating how extra work affects your current grade.

Your average score on all completed assignments and exams
The percentage of your final grade already determined by work you've submitted
The final course grade you're aiming to achieve
The percentage of your final grade still to be determined by upcoming work

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

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

Required Score = ((Desired Grade - (Current Grade × Completed Weight)) ÷ Remaining Weight
Desired Grade: The final percentage you want to achieve (convert 90% to 0.90 for calculation)
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

New Grade = (Current Grade × Unchanged Weight) + (Expected Score × New Assignment Weight)
Current Grade: Your existing course percentage (convert 86% to 0.86)
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

Maria currently has 88% in her biology course with 70% of the work completed. She wants to know what she needs on the final exam (worth 30%) to finish with an A- (90%).
Current points: 0.88 × 0.70 = 0.616 (61.6%)
Points needed: 0.90 - 0.616 = 0.284 (28.4%)
Required exam score: 0.284 ÷ 0.30 = 0.9467
Maria needs 94.7% on her final exam

Extra Credit Decision

James has 79% in his history class. An optional paper worth 10% of the grade is available. He estimates he could earn 92% on this paper and wonders how it would affect his final grade.
Unchanged portion: 0.79 × 0.90 = 0.711 (71.1%)
New portion: 0.92 × 0.10 = 0.092 (9.2%)
Combined grade: 0.711 + 0.092 = 0.803
James would improve to 80.3% (+1.3 percentage points)

Realistic Goal Setting

Alex has 82% with 80% of coursework completed and wants 85% final grade. The remaining 20% includes a project and presentation.
Current points: 0.82 × 0.80 = 0.656 (65.6%)
Points needed: 0.85 - 0.656 = 0.194 (19.4%)
Required average: 0.194 ÷ 0.20 = 0.97
Alex needs 97% average on remaining work - a challenging but possible goal with excellent preparation

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)
Current Standing Calculation

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).

Grade Target Analysis

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%
Strategic Adjustments

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.

Ferequently Asked Questions

What should I do if my assignment weights don't add up to exactly 100%?
Double-check your course syllabus or ask your instructor for clarification. Accurate weight totals are essential for reliable predictions. The calculator will notify you if weights seem inconsistent.
How reliable are these predictions for classes using grading curves?
Curved grading adds complexity because your final grade depends on overall class performance. Focus on maintaining a strong percentile ranking rather than hitting specific percentage targets in curved courses.
What factors affect prediction accuracy the most?
The two biggest factors are accurate current grade calculation and correct weight information. Small errors in either can significantly affect results, so take time to verify your inputs.
How should I account for multiple assignments with different weights?
Combine similar assignments into categories. Calculate weighted averages for completed work within each category, then use those category averages as your inputs with their combined weights.
Is aiming for the calculated minimum score a good strategy?
Always plan to exceed the minimum by a safety margin. Unanticipated challenges, grading variations, or calculation uncertainties make targeting higher scores the prudent approach.
How do incomplete or missing assignments affect current grade calculations?
For conservative planning, enter zeros for missing work when calculating your current average. This creates the most realistic (and sometimes sobering) picture of what you need going forward.

Related Calculators