Softonic

Weighted Average Calculator

Step 1 / 3 Weighted average
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Enter one value for every weight. The calculator multiplies each pair, adds the products, and divides by the sum of the weights.

Formula and input rules

Weighted mean = Σ(value × weight) ÷ Σweights. Values and weights must form equal-length lists. Weights may be zero but not negative, and at least one must be positive. In decimal-comma locales, separate entries with spaces or semicolons, for example 2,5; 3,75. The simple mean is shown only as a comparison and uses the same matched values.

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