Each row is one grading category off your syllabus: its average so far, and its weight. The result updates as you type.

Your grade right now

Type a score and a weight into any row and your standing appears here.

Letter grade
Weight entered

Grade Calculator

Your class grade right now, from weighted categories — homework, quizzes, exams.

How weighted grades work

In a weighted class, categories contribute in fixed proportions no matter how many assignments each one holds. Ten homeworks worth 20% together still move your grade less than one midterm worth 25%. Your grade is:

Grade = Σ(category score × category weight) ÷ Σ(weights)
Homework 92 at 20%, quizzes 84 at 20%, midterm 78 at 25%, final not taken yet. Grade so far = (92×20 + 84×20 + 78×25) ÷ 65 = 84.2% — a B, computed out of the 65% of the class that exists so far.

When the weights don't add up to 100

Mid-semester they usually don't — the final hasn't happened. This calculator averages over the weight you've actually entered and tells you how much of the class that covers, instead of silently treating missing categories as zeros. If the weights on your syllabus genuinely don't sum to 100, that's worth an email to your instructor before it's worth a calculator.

Where the numbers live in your syllabus

Look for a table headed “Grading” or “Assessment.” You need two things per row: the category name and its percentage. Inside a category, unless the syllabus says otherwise, the score is the plain average of its assignments. Two traps worth checking: whether the final exam sits inside a category or has its own weight, and whether any scores get dropped — both change what to type here.

Trying to hit a specific grade instead? The final grade calculator solves for the exam directly.

Frequently asked questions

Why doesn't this match my school portal exactly?Portals apply school-specific policies — dropped scores, late penalties, rounding — that a plain weighted average doesn't know about. If the gap is more than a rounding error, one of those policies is the reason.
Do I include the final exam in the rows?Only if it's been graded. Before the exam, leave it out and read your standing out of the weight entered so far — or use the final grade calculator to solve for it.
Letter thresholds and passing lines differ between schools — your syllabus always wins. This calculator assumes no dropped scores or replacement policies unless you model them yourself.
Written by The Editorial TeamUpdated July 17, 2026 · Scale sources are cited on every thresholdHow we research & review · About our team