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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

`=SUMPRODUCT(values,weights)/SUM(weights)`

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

## Formula

`=SUMPRODUCT(B4:B11,C4:C11)/SUM(C4:C11)`

## 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
`=SUMPRODUCT(B4:B11,C4:C11)/SUM(C4:C11)`
• 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
`=AVERAGE(B4:B11)`
• We will press the enter key

Figure 4- Average Score for the Courses

## Explanation

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. 