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Weighted Grade Calculator

Know exactly where you stand. Calculate your weighted course grade, see your letter grade, estimate GPA, and explore what you need to reach your target.

✓ Updates as you type✓ Works on any device✓ Your data stays in your browser
Current grade87.4%
Letter gradeA−
Weighted points87.4 / 100
Calculator

Build your gradebook

Enter every graded item and its weight. Results update instantly.

Assignments

0 assignments

0% of course weight entered
AssignmentScoreMaxWeightActions
Grade tools

Go beyond the basic calculation

Answer the questions students actually have before the semester ends.

Target grade

Find the average score you need across your remaining work to finish with a specific course grade.

Enter your current grade above, then solve.

Final exam score

Calculate the exact final-exam score required to reach your desired course grade.

Your result will appear here.

What-if analysis

Change a score temporarily and see how it would move your overall grade.

Enter a score and weight to model a scenario.
Understand the math

How weighted grades work

A weighted grade gives different assignments, exams, projects, or categories different levels of importance. A 95% on a 5%-weight quiz does not affect your course grade as much as an 85% on a 30%-weight final.

Weighted gradeΣ (score ÷ maximum score) × weight
Example90% × 20% = 18 points

Step-by-step calculation

  1. Convert each score to a percentage. Divide the points earned by the maximum points.
  2. Convert each weight to a decimal. A 25% weight becomes 0.25.
  3. Multiply. Score percentage × weight gives the contribution to your final grade.
  4. Add the contributions. When weights total 100%, the sum is your weighted course grade.

Worked example

Homework92% × 20% = 18.40
Midterm84% × 30% = 25.20
Project95% × 20% = 19.00
Final88% × 30% = 26.40
Final weighted grade89.00%

Common mistakes to avoid

  • Adding raw assignment percentages without considering their weights.
  • Confusing points-based grading with category-weighted grading.
  • Forgetting to confirm that the weights total 100%.
  • Assuming every school uses the same letter-grade or GPA scale.
  • Rounding individual values too early instead of rounding the final result.
Grade scales

Common grading scales

Letter and GPA conversions vary by school, so treat these as common estimates rather than universal rules.

A93–100%4.0
A−90–92%3.7
B+87–89%3.3
B83–86%3.0
B−80–82%2.7
C+77–79%2.3
C73–76%2.0
D60–69%1.0
Tips

Use your syllabus as the source of truth

Your instructor may use category weights, dropped assignments, extra credit, curves, or a custom grading scale. When in doubt, use the exact rules in your syllabus or learning platform.

1Enter the actual maximum score, not 100, when assignments use different point totals.
2Use category weights only if the course is explicitly category-weighted.
3Keep a copy of your gradebook before making hypothetical changes.
FAQ

Frequently asked questions

What is a weighted grade?

A weighted grade gives different assignments or categories different amounts of influence on your final course grade. Each score is converted to a percentage, multiplied by its weight, and the weighted contributions are added.

How do I calculate a weighted grade?

For each item, divide points earned by maximum points, multiply by its decimal weight, then add the contributions. If you scored 90% on an assignment worth 20%, it contributes 18 percentage points.

Do my weights have to add up to 100%?

For a complete course calculation, yes. This calculator highlights the total weight so you can spot missing or excessive weight. If your course is only partially graded, you can still use the target and final-exam tools.

Can I calculate my GPA from my weighted grade?

The calculator provides a simple 4.0-scale estimate based on the displayed letter grade. Colleges and schools can use different scales, plus/minus rules, or course weighting, so do not treat the estimate as an official GPA.

What if an assignment has a score out of 50 or 200?

Enter the points earned and the actual maximum score. The calculator converts that ratio to a percentage before applying the weight.

What score do I need on my final exam?

Use the Final Exam tool and enter your current grade, final-exam weight, and desired final grade. The calculator solves the score required on the exam and tells you if the target is mathematically impossible.

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