KKwikfig.

Grade Calculator

Work out your overall course grade from weighted assignments, quizzes, tests, and exams — instant results, right in your browser. Runs entirely in your browser — your numbers never leave this device.

Current grade
87.4%
That is a B+ on the work graded so far (70% of the course).
Letter grade
B+
Graded weight
70%
Remaining weight
30%
Best possible final grade
91.2%
Contribution by category
CategoryScoreWeightPoints toward final grade
Homework95%20%19 pts
Quizzes88%20%17.6 pts
Midterm Exam82%30%24.6 pts
Final ExamNot graded yet30%—

Leave a category's score blank if it hasn't been graded yet — it counts toward the remaining weight and the best possible final grade, not toward your current grade.

How it works

Overall grade % = Σ (category average % × category weight %) ÷ Σ category weights

Most course grades are weighted averages, not simple averages. Your syllabus splits the grade into categories — homework, quizzes, tests, projects, a final exam — and gives each a percentage weight. For each category, take your average percentage score, multiply it by its weight, add those products together, and divide by the total weight (usually 100). The result is your overall percentage, which maps to a letter grade on the standard scale (90–92% = A−, 87–89% = B+, 83–86% = B, and so on).

If a category has not happened yet, such as a final exam still to come, this calculator handles what you have completed; to find the score you need on what remains, use the Final Grade Calculator, which solves the same weighted-average equation backwards. Entering only completed work here and renormalising over the weights entered shows your standing on the work done so far.

The main assumption is that the weights you enter match your syllabus. Teachers occasionally drop the lowest quiz or curve a test, and those adjustments will not show up in a straight weighted average — so treat the result as an accurate calculation from the published weights, and ask your teacher how drops or curves apply to you.

Worked examples

Three weighted categories

Input
Assignments average 92% (weight 30%), midterm 84% (weight 30%), final project 88% (weight 40%).
Working
Assignments: 92 × 0.30 = 27.6. Midterm: 84 × 0.30 = 25.2. Final project: 88 × 0.40 = 35.2. Total = 27.6 + 25.2 + 35.2 = 88.0 out of 100.
Result
Overall grade = 88.0% (B+)

Quizzes, tests, and participation

Input
Quizzes average 75% (weight 20%), tests average 85% (weight 60%), participation 100% (weight 20%).
Working
Quizzes: 75 × 0.20 = 15.0. Tests: 85 × 0.60 = 51.0. Participation: 100 × 0.20 = 20.0. Total = 15.0 + 51.0 + 20.0 = 86.0 out of 100.
Result
Overall grade = 86.0% (B)

Standing on completed work only

Input
Homework average 95% (weight 25%) and tests average 78% (weight 50%) are complete; the final exam (weight 25%) has not been taken.
Working
Completed contributions: 95 × 0.25 = 23.75 and 78 × 0.50 = 39.0, totalling 62.75 points from weights that sum to 75. Standing on completed work = 62.75 ÷ 75 × 100 = 83.67%.
Result
Current standing = 83.7% (B) before the final

Frequently asked questions

Where do I find the category weights?

In your course syllabus or your school's online grade portal, which usually lists the weight next to each category. If the weights do not add up to 100 in what you were given, a category is probably missing — often the final exam. Enter the weights exactly as published and this calculator handles the division correctly.

My teacher drops the lowest quiz. How do I handle that?

Calculate your quiz category average without the dropped score, then enter that average here. The calculator applies the published weights to the averages you give it; drop policies, curves, and extra credit happen inside a category average, so adjust that average first and the weighted total will follow.

What letter grade is my percentage?

On the common 10-point scale, 93–100% is an A, 90–92% an A−, 87–89% a B+, 83–86% a B, 80–82% a B−, and each band steps down by roughly three points from there, with anything below 60% an F. Your school's bands may differ slightly — the full table is on the Letter Grade Converter page.

Does this calculator save my grades?

No. It runs 100% in your browser and stores nothing — your scores and category weights are processed on your device only and are never sent to a server or kept after you leave. There is nothing to sign up for and no history to delete.

Why is my portal grade different from my calculation?

Usually because the portal includes something the plain weighted average does not: a dropped lowest score, a curve, extra credit, or a zero for a missing assignment you have not entered. Recheck that every scored item is in your category averages, including zeros — a single unentered zero is the most common cause of a mismatch.

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