Weighted Average Calculator
Calculate weighted average from a list of values and their corresponding weights. Shows sum of products and total weight with the formula used.
How to Use Weighted Average Calculator
The Weighted Average Calculator computes the weighted mean from a set of values and their corresponding weights using the formula Σ(value × weight) / Σ(weight). Enter at least two value-weight pairs and click Calculate. The tool shows the weighted average, sum of products, and total weight. Add or remove rows as needed. Common uses include calculating GPA (grades weighted by credit hours), portfolio returns (returns weighted by investment amounts), and survey results (responses weighted by sample sizes). All weights must be non-negative and the total weight cannot be zero.
Step-by-Step Instructions
- Enter values and their corresponding weights in each row
- Add more rows if needed using the + Add Row button
- Click Calculate to see the weighted average
- View the formula breakdown and copy results
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