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How to calculate a weighted average in Excel and Google Sheets
Topic:RANK & statistical aggregatesExcel & Google Sheets
=SUMPRODUCT(B2:B10, C2:C10) / SUM(C2:C10)Try it with your data
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Step by step
- 1B2:B10 are the values; C2:C10 are their weights.
- 2SUMPRODUCT multiplies each value by its weight and adds the results.
- 3Divide by SUM of the weights to get the weighted average.
Tips
- The values and weights ranges must be the same size.
- Use this for grade averages, weighted scores, or price-per-unit blends.
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Frequently asked
How is a weighted average different from a normal average?
A normal average treats every value equally. A weighted average lets some values count more, based on the weight you assign each one.
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