What if my weights don't add up to 1?

That's fine — this formula normalizes by total weight, so weights can be any positive numbers (like 5, 3, 2) rather than needing to sum to exactly 1 or 100%.

Weighted Average Calculator

Calculate a weighted average, where each value contributes proportionally to its assigned weight rather than being counted equally.

Inputs

Results

Weighted Average: 83

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Formula

Weighted Average = Σ(Value × Weight) / Σ(Weight)

Learn How This Works

Statistics Beyond the Average: Range, CV, Harmonic and Weighted Means

Statistical range, coefficient of variation, harmonic mean, and weighted average — four ways to describe a data set beyond a simple average.

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