Weighted Average Calculator

Calculate Weighted Mean

Calculate weighted average with custom weights. Free weighted average calculator for accurate results.

How is weighted average calculated?

Weighted Average = Σ(Value × Weight) / Σ(Weights). Each value is multiplied by its weight, then summed and divided by total weights.

When is weighted average used?

Weighted average is used when different values contribute unequally, such as in grade calculations, investment portfolios, or statistical analysis.