AutoSum in Excel (Complete Guideline)

To apply the AutoSum feature:

  • Go to the Home tab > click AutoSum feature under the Editing group.
  • This will insert the SUM formula immediately.

AutoSum feature

  • Press ENTER to show the sum.

AutoSum feature calculates sum


Keyboard Shortcut for AutoSum Feature

To apply the AutoSum feature with the keyboard shortcut, just press CTRL+=. This will act the same as applying AutoSum from the Excel ribbon.

AutoSum feature keyboard shortcut


Use AutoSum Feature for Other Excel Functions

Users can use the Autosum feature for some other Excel functions.

Navigate to the Home tab from the ribbon and Click the drop-down of the AutoSum icon. Excel will show you a list of functions with this button. Choose the function that you need for your calculation.

Autosum feature for other Excel functions


AutoSum Filtered Cells in Excel

AutoSum inserts the SUBTOTAL function for filtered cells.

  • Click the dropdown arrow at the header of the columns that contain the filter feature.

Click dropdown of filter option

  • Choose the option on which you want to apply the filter  > click OK.

Filtering options

  • After filtering cells, apply the AutoSum feature. You will see that Excel has inserted the subtotal function. Find the sum of only the filtered cells.

AutoSum filtered cells


AutoSum for Multiple Cells in Excel

Method 1 – Apply AutoSum Feature Vertically

AutoSum feature is also available on the Formulas tab. To apply the AutoSum feature vertically for multiple cells of columns:

  • Select the range of cells > go to the Formulas tab > click AutoSum feature.

Select cells to apply autosum vertically

  • This will simultaneously calculate the sum of the respective columns in these multiple cells.

Autosum applied for columns


Method 2 – Apply AutoSum Feature Horizontally

  • Select the range of cells right beside the rows and apply the AutoSum feature.

Select cells to apply autosum horizontally

  • This will calculate the sum for rows immediately.

Autosum applied for rows


Excel AutoSum Not Working

The main reason behind Excel autosum not working is because of the formatting of numbers. If the numbers are stirred as text, the sum won’t take the numbers as an argument. In that case, the cells containing numbers will show a green triangle at the top left corner.

Excel autosum not working

To solve this problem, click on that triangle and select Convert to Number from the dropdown options. After fixing it, the AutoSum feature will work spontaneously.

Convert text to number


Frequently Asked Questions

1. What are the different types of AutoSum?

AutoSum offers several variations to perform different types of calculations based on your data like: SUM, AVG. MAX, MIN, COUNT etc.

2. Why is AutoSum using subtotal?

If you have a filtered range of numbers and you use AutoSum, Excel will insert the SUBTOTAL function with the function number 9 (SUM) as the first argument. This ensures that the sum is calculated only for the visible (unfiltered) cells in the range, excluding any hidden rows

3. Why does AutoSum show 0?

The reasons behind AutoSum returning 0 are: empty cells, formatting issues, incorrect range selection, error values, hidden or filtered data etc.


Things to Remember

  • AutoSum simplifies calculations in Excel by automatically generating formulas for basic operations.
  • The default function in the AutoSum feature is the SUM formula.
  • AUtoSUm inserts the SUBTOTAL function for a range of filtered cells.
  • AutoSum does not work for cells that contain values stored as text.

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AutoSum in Excel: Knowledge Hub


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Rafiul Hasan
Rafiul Hasan

Rafiul Hasan, holding a BSc in Naval Architecture and Marine Engineering from Bangladesh University of Engineering & Technology, contributes significantly to the ExcelDemy project with almost 1.6 years of dedicated work. Currently an Excel and VBA Content Developer, he has a passion for problem-solving. Authoring over 100 articles for ExcelDemy showcases expertise in Microsoft Office Suites and Data Analysis. In addition to content development, Rafiul actively engages with the ExcelDemy forum, offering valuable solutions to user queries and... Read Full Bio

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