加重平均計算機

共有リンク

はじめに

Weighted Mean Calculator — Compute the weighted average of values with weights. Enter Value,Weight per line to get an instant, accurate result.

計算式

Weighted mean = Σ(weight × value) / Σ(weight), each value scaled by its importance before averaging.

ステップごとの説明

Enter the Value,Weight per line.
Click Calculate to see your result instantly.

実例

Example: With the defaults shown above, the Weighted Mean Calculator gives Weighted Mean: 78.3333.

よくある質問

How is this different from a regular average?

A regular average treats every value equally; a weighted mean gives values with a higher weight more influence over the result.

What if all weights are equal?

Then the weighted mean reduces to the ordinary arithmetic mean.

What inputs does the Weighted Mean Calculator need?

You'll need to provide: Value,Weight per line. All fields use sensible defaults, so you can see a working example immediately and then adjust the values to match your own numbers.

How accurate is the Weighted Mean Calculator?

The Weighted Mean Calculator applies the formula exactly as calculated — Weighted mean = Σ(weight × value) / Σ(weight), each value scaled by its importance before averaging. — so results are precise for the inputs you provide. Accuracy depends on entering correct, realistic input values.

Is the Weighted Mean Calculator free to use?

Yes, the Weighted Mean Calculator is completely free, requires no signup, and runs instantly in your browser.