Weighted Mean Calculator

The Weighted Mean Calculator allows you to quickly determine the weighted average of a dataset in which each value has a distinct level of significance. Unlike a simple mean that treats all values equally, the weighted mean takes into account the importance or frequency of each value, making it suitable for applications in academic grading, finance, risk assessment, economics, and statistical research.

What Is Weighted Mean or Weighted Average?

The weighted mean (also called weighted average) is a statistical measure that assigns different weights to different data points based on their importance.

Where Weighted Mean Is Used

  • Academic grading: Assignments, quizzes, and finals carry different weightage.
  • Finance: Calculating portfolio returns based on asset weights.
  • Business analytics: Weighted customer feedback or sales performance.
  • Data science & statistics: Unevenly distributed datasets.

In all these cases, some numbers matter more than others, and the weighted mean accurately captures that difference.

Formula for Weighted Mean

Weighted Mean = ( wi × xi ) wi

Where:

  • xi​ = data values
  • wi= corresponding weights
  • ∑(wi × xi)= sum of weighted values
  • ∑wi= total of all weights

How to Find the Weighted Mean Using Our Calculator?

  • Enter the values and their corresponding weights.
  • Click “Calculate” and the tool automatically computes the Weighted Mean..