Weighted Grade Calculator
Enter each component's score and its weight (%). Weights need not total 100 — the result is normalised.
How weighted grades work
weighted grade = Σ(score × weight) ÷ Σ(weight)
Multiply each score by its weight, add the products, and divide by the total weight. Example: homework 88% (20%), midterm 75% (30%), final 92% (50%) → (88×20 + 75×30 + 92×50) ÷ 100 = (1760 + 2250 + 4600) ÷ 100 = 86.1%.
Do my weights have to add up to 100?
No. Because the calculator divides by the total weight, you can enter raw points (e.g. 200, 300, 500) and still get the correct result.
Frequently asked questions
What is the difference between weighted and unweighted grades?
An unweighted grade treats every assignment equally; a weighted grade lets some components count more, e.g. a final worth 50%.
Can I leave a component blank?
Rows with a 0 or empty weight simply do not contribute. Add as many rows as you need.
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