Weighted Average Calculator
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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Calculate Weighted Averages Accurately
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.
What is a Weighted Average?
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) / ΣwᵢHow to Calculate Weighted Average
Weighted Average Applications
Academic Grades
Calculate GPA with different course credits as weights.
Investment Returns
Find portfolio return weighted by investment amount.
Survey Analysis
Weight responses by sample size or importance.
Performance Metrics
Combine KPIs with different importance levels.
Frequently Asked Questions
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.