How to Add SUM Formulas Across Multiple Excel Columns
Question details
The user needs to calculate the sum for several separate numeric columns but is experiencing issues where a formula in one column seemingly affects another.

- Product
- Excel
- Device & OS
- not provided
- Scenario
- Calculating subtotals or grand totals for multiple independent columns of spreadsheet data.
- Observed behavior
- The user struggles to apply independent SUM functions to adjacent columns, mistakenly believing the formula in one column interferes with the formulas in the others.
Verify that your cells containing the data are formatted as Numbers rather than Text, as text-formatted numbers will result in a zero total when using the SUM function.
Use the Fill Handle to Auto-Fill SUM Formulas
The quickest way to apply a SUM formula across adjacent columns is by using the fill handle, which automatically adjusts relative cell references for each column.
By utilizing relative references, you only need to input the formula once. When dragged, the spreadsheet intelligence updates the column letters for you automatically.
Select the empty cell at the bottom of your first numeric column. Type =SUM(A2:A100) (replace A2:A100 with your actual data range) and press Enter.
Click on the cell where you just entered the SUM formula. Hover your mouse cursor over the small green square in the bottom-right corner of the cell until it turns into a solid black cross.
Click and hold the left mouse button, then drag the cross horizontally across the adjacent columns where you need the sum totals calculated.
Release the mouse button. The formulas will automatically populate in each column, correctly referencing their respective data ranges.

Manually Enter the SUM Formula for Each Column
If your columns are not adjacent or you prefer manual control over your ranges, you can type the SUM formula into each column individually.
Effortlessly Sum Multiple Columns in WPS Spreadsheet
WPS Spreadsheet makes it incredibly simple to sum up multiple columns of data with intuitive formula tools, smart auto-fill features, and complete compatibility with your existing Excel files.
- 1. Open your spreadsheet: Launch WPS Spreadsheet and open the workbook containing the multiple columns of data.
- 2. Select the target cells: Highlight the empty row of cells directly beneath all the data columns you wish to total.
- 3. Apply AutoSum: Navigate to the Formulas tab on the top ribbon and click the 'AutoSum' button. WPS will immediately populate correct SUM formulas across all selected columns.

Frequently Asked Questions
Why does my SUM formula return 0 even when there are numbers in the column?
This typically occurs because the numbers are formatted as text. Select the range of cells, right-click and choose 'Format Cells', then change the category to 'Number'. Afterward, double-click the formula cell and press Enter to refresh the calculation.
Why is the exact same total copying across all columns instead of updating?
Your spreadsheet calculation options might be set to 'Manual'. Go to the Formulas tab, select 'Calculation Options', and ensure 'Automatic' is checked. Alternatively, verify that you didn't use absolute references (like $A$2:$A$100), which lock the formula to the first column.
Can I sum multiple non-adjacent columns with a single formula?
Yes. You can sum completely separate ranges by separating them with commas inside a single SUM formula. For example, typing =SUM(A2:A10, C2:C10) will add together the numbers in column A and column C.




