What this calculator does
Calculate a course grade from matching lists of assessment scores and weights.
How it works
The calculator evaluates weighted grade = Σ(score × weight) ÷ Σ(weight). Inputs are checked before calculation, and invalid values such as zero denominators or out-of-range selections produce a clear error instead of a misleading result.
Input query strings and outputs
Use an input name in this page’s URL as ?name=value, and join additional inputs with &. Portable shared links may instead use the compact ?ac= state parameter.
Input query strings
2-
?scores=Scores (%)Text · Required · Default: 85, 90, 78, 92
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?weights=Weights (%)Text · Required · Default: 20, 10, 30, 40
Outputs
4-
weightedGradeWeighted gradePercentage · Primary output
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letterGradeLetter gradeText
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totalWeightTotal weight enteredPercentage
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weightedPointsWeighted pointsNumber
Inputs and results
The inputs are Scores (%), Weights (%). Results include Weighted grade, Letter grade, Total weight entered, Weighted points.