Weighted grade calculator
Add up assignments, mid-terms, labs and exams by their weights. If your weights don’t total 100, it tells you rather than hiding it.
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How it’s worked out: weighted total = Σ(score × weight) ÷ Σ weight. If your weights don’t total 100, the result says so rather than quietly rescaling — usually a component is missing.
Common questions
My weights add up to 90 — is that a problem?
Usually it means a component is missing. The tool divides by the weights you entered, so the total will move once you add it.