Weighted Average Calculator 計算機

この計算機は扱います: Calculate a weighted average from three values and their weights.

Math 更新 2026-05-11

入力

Value A Weight A Value B Weight B Value C Weight C

Weighted average 値を入力して計算します。

Total weight 値を入力して計算します。

weighted average = sum(value x weight) / sum(weights).

この計算機は扱います: Calculate a weighted average from three values and their weights.

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.

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.