How to ignore blanks when calculate the weighted average in Excel?
In statistic calculation, the weighted average is used more widely than the average function. But do you know how to calculate the weighted average ignoring the blanks in Excel?
For example, there are two columns in a sheet which record the grades and the number of cases of a student, but this student is absent from some cases of examinations which leave the blanks in the column of grades as below screenshot shown. If you apply the normal Weighted Average function =SUMPRODUCT(A2:A5,B2:B5)/SUM(B2:B5), it will get the result 79.333 which is somewhat unfair for the student. In this article, I introduce a formula to calculate the weighted average ignoring blank records in Excel.
Calculate weighted ignore blanks
Calculate weighted ignore blanks
Select a blank cell you want to place the result, and type this formula =SUMPRODUCT(A2:A5,$B$2:$B$5)/SUMPRODUCT(--(A2:A5<>""),$B$2:$B$5), and press Enter key. See screenshot:
In the formula, A2:A5 is the grade records, B2:B5 is the number of cases. You can change them as you need.
The Best Office Productivity Tools
Kutools for Excel Solves Most of Your Problems, and Increases Your Productivity by 80%
- Reuse: Quickly insert complex formulas, charts and anything that you have used before; Encrypt Cells with password; Create Mailing List and send emails...
- Super Formula Bar (easily edit multiple lines of text and formula); Reading Layout (easily read and edit large numbers of cells); Paste to Filtered Range...
- Merge Cells/Rows/Columns without losing Data; Split Cells Content; Combine Duplicate Rows/Columns... Prevent Duplicate Cells; Compare Ranges...
- Select Duplicate or Unique Rows; Select Blank Rows (all cells are empty); Super Find and Fuzzy Find in Many Workbooks; Random Select...
- Exact Copy Multiple Cells without changing formula reference; Auto Create References to Multiple Sheets; Insert Bullets, Check Boxes and more...
- Extract Text, Add Text, Remove by Position, Remove Space; Create and Print Paging Subtotals; Convert Between Cells Content and Comments...
- Super Filter (save and apply filter schemes to other sheets); Advanced Sort by month/week/day, frequency and more; Special Filter by bold, italic...
- Combine Workbooks and WorkSheets; Merge Tables based on key columns; Split Data into Multiple Sheets; Batch Convert xls, xlsx and PDF...
- More than 300 powerful features. Supports Office / Excel 2007-2021 and 365. Supports all languages. Easy deploying in your enterprise or organization. Full features 30-day free trial. 60-day money back guarantee.

Office Tab Brings Tabbed interface to Office, and Make Your Work Much Easier
- Enable tabbed editing and reading in Word, Excel, PowerPoint, Publisher, Access, Visio and Project.
- Open and create multiple documents in new tabs of the same window, rather than in new windows.
- Increases your productivity by 50%, and reduces hundreds of mouse clicks for you every day!
