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Learn How to Calculate the Weighted Average in Excel

We can use a formula that combines the SUMPRODUCT function and the SUM function to calculate the weighted average of a set of values in a range. The steps below will walk through the process.

Figure 1- Final result of the Weighted Average

General Formula


  • Values: These are the numbers in the data
  • Weights: This is the percentage weight of each number in the data



Setting up the Data

We will calculate the weighted average score of the courses in the data below.

  • Column A, B, and C will contain the Course, Score, and Weight respectively
  • The mean or normal average score for the courses will be returned in Cell E7. The weighted average will be returned in Cell E4

Figure 2 – Setting up the Data

Weighted Average

  • We will click on Cell E4
  • We will insert the formula below into Cell E4
  • We will press the enter key

Figure 3- Weighted Average Score for the Courses

Normal Average

  • We will click on Cell E7
  • We will insert the formula below into Cell E7
  • We will press the enter key

Figure 4- Average Score for the Courses


The SUMPRODUCT function multiplies the cells in Column B with cells of Column C (B4*C4 and so on) and returns the sum of each multiplied cells. This sum is then divided by the sum of the scores that have been added by the SUM function.

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Are you still looking for help with the Average function? View our comprehensive round-up of Average function tutorials here.

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