Grade Calculator

Calculate your current class grade and what you need on the final exam.

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Your Grades

Typically 15–30% in US schools

⚠ Mathematically Impossible

—

You'd need 110.0% — try lowering your target

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Calculation

Current Grade85.0%
Current Worth80% of final grade
Final Exam Worth20% of final grade
Target Grade90.0%
Score Needed on FinalImpossible

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About this calculator

Calculate Your Final Grade

Track your course grade through the semester and figure out exactly what score you need on the final exam to hit your target grade. Includes weighted categories (tests, homework, participation), plus current grade and what-if scenarios.

What This Calculator Does

Enter each assignment or category with its weight and score. The calculator returns your current weighted grade, your best-case and worst-case scenarios, and the score needed on a final exam to reach your target.

How Weighted Grades Work

Final Grade = Σ (Category Score × Category Weight)

Example: Tests 40%, Homework 30%, Quizzes 20%, Participation 10%.

Worked Example: Mid-Semester

CategoryWeightYour ScoreWeighted
Tests40%85%34.0
Homework30%95%28.5
Quizzes20%78%15.6
Participation10%100%10.0
Total100%88.1%

Current grade: B+. To reach an A (90%+), you need a 92% on the remaining work.

Grading Scales

LetterPercentGPA
A93-1004.0
A-90-923.7
B+87-893.3
B83-863.0
B-80-822.7
C+77-792.3
C73-762.0
C-70-721.7
D60-691.0
FBelow 600.0

How to Improve Your Grade

  • Focus on high-weight categories first - a 10% improvement in tests beats 10% in participation
  • Ask about extra credit opportunities
  • Talk to the teacher about borderline cases
  • Retake any allowed quizzes or exams
  • Get tutoring or study group help for weak areas
  • Complete every assignment, even if worth a small percentage

Frequently Asked Questions

How do I calculate a weighted grade?

Multiply each category score by its weight as a decimal, then add them. Example: 85% × 0.40 = 34.

What do I need on the final to get an A?

Enter your current grade and the final exam weight. The calculator tells you the exact score needed.

How do I calculate GPA from grades?

Convert each letter grade to its 4.0 value, then average (or average with credit hours for college).

What is a passing grade?

Usually 60% or D. Some programs require C (73%) or higher for major courses.

Does this work for college courses?

Yes - college grades often use the same weighted category approach, though the scale may vary.

What if I have extra credit?

Add extra credit as a category with negative weight, or adjust your scores upward based on the points earned.

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