Free weighted average calculator for grades, portfolios, and statistics. Calculate averages where each value has different importance.
Enter values separated by commas, spaces, or newlines
Enter corresponding weights (same count as values)
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Not all values are created equal. When some numbers matter more than others, you need a weighted average. Our calculator helps you compute weighted means for grades, portfolios, surveys, and any scenario where different items have different importance levels.
A weighted average gives each value a weight based on its importance. Unlike a simple average where all values count equally, weighted averages multiply each value by its weight before summing. Common uses include GPA calculation (credits as weights), portfolio returns (investment amounts as weights), and survey results (response counts as weights).
Weighted Average Formula
x̄ᵥ = Σ(xᵢ × wᵢ) / ΣwᵢCalculate GPA with different course credits as weights.
Find portfolio return weighted by investment amount.
Weight responses by sample size or importance.
Combine KPIs with different importance levels.
Use weighted average when values have different importance levels—like course credits for GPA, investment sizes for returns, or sample sizes in research. Use simple average when all values are equally important.