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Weighted average calculator.

Calculate a final score from three grades and their relative weights.

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01 / QUESTION

If every score is 80, what is the weighted average?

The result remains 80 since the weights add to 100%.

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How it works

Each score is multiplied by its percentage weight. All weights must sum to 100%.

KEY FORMULAAverage = (v₁w₁ + v₂w₂ + v₃w₃) / 100.
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Worked example

85 × 30% + 90 × 30% + 75 × 40% = 82.5 points out of 100.

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Before using this result

Works on the 0–100 scale; convert other grading systems before entering scores.

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Informational simulation. Verify real-world conditions before making decisions.

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Frequently asked questions

Can I use a 0–5 scale? +

Multiply each 0–5 score by 20 to convert it to 0–100.