单位换算器
Weighted Average Calculator 計算機
此计算器用于 Calculate a weighted average from three values and their weights.
公式和使用说明
weighted average = sum(value x weight) / sum(weights).
此计算器用于 Calculate a weighted average from three values and their weights.
实用示例
Scores 85, 92, 78 with weights 30, 50, 20 average to 87.1.
Weights can be percentages or points as long as they use one scale.
A zero total weight cannot produce a weighted average.
常见问题
What inputs does this calculator need?
Value A, Weight A, Value B, Weight B, Value C, Weight C.
How should I round the result?
Keep extra digits while comparing values, then round for the final decision or report.
Can I reuse the result in another calculation?
Yes, but preserve the original inputs and units so the next calculation stays traceable.