How to Fix Word Table Formula Number Formatting and Thousands Separators
Question details
The user is experiencing formula calculation errors in a Word table when numbers are formatted with comma thousands separators.

- Product
- Microsoft Word
- Device & OS
- Windows
- Scenario
- Calculating sums or averages in a Word document table using data that includes thousands separators.
- Observed behavior
- Formulas calculate correctly when numbers are plain, but fail or produce errors when values contain commas as thousands separators due to conflicting system settings.
Ensure you have saved your current Word document, as you will need to modify Windows system settings and may need to refresh your document for the changes to take effect.
Adjust Windows Regional Number Format Settings
Match your Windows decimal and thousands separators with the format you are typing into the Word table to prevent formula calculation errors.
Word relies on Windows system settings to understand how numbers are formatted. If your computer is set to use a comma as a decimal point instead of a thousands separator, Word formulas will fail to process numbers like '1,000' correctly.
Press the Windows key + R simultaneously on your keyboard to open the Run window.
Type 'control international' into the text box and press Enter. This will open the Region settings window.
On the Formats tab, click the 'Additional settings...' button located near the bottom.
Review the 'Decimal symbol' and 'Digit grouping symbol' values. Set the grouping symbol (thousands separator) to a comma and the decimal symbol to a period, matching the format you use in your Word table.
Click 'Apply' and then 'OK'. Return to your Word document, right-click the formula cell, and select 'Update Field' to test the calculation again.

Calculate Table Data Easily with WPS Writer
WPS Office offers a fully compatible and intuitive word processor that handles table formulas flawlessly. You can easily sum, average, and format numerical data directly within your document tables.
- 1. Open Document: Open your document in WPS Writer and place your cursor in the blank cell where you want the calculation result.
- 2. Navigate to Table Tools: Click on the 'Table Tools' tab located on the top navigation ribbon.
- 3. Open Formula Dialog: Click on 'Formula' (the fx icon) in the Data group to open the calculation settings.
- 4. Enter Formula and Format: Enter your desired formula (e.g., =SUM(ABOVE)) and select your preferred number format containing thousands separators from the dropdown menu.
- 5. Apply Calculation: Click 'OK' to instantly calculate the result with the correct numerical formatting.

Frequently Asked Questions
Why does my Word table formula show a syntax error?
Syntax errors usually occur if there is a typo in the formula, incorrect cell referencing, or if the number formatting (like commas or decimals) conflicts with your system's regional settings.
Can I format the formula result to include a thousands separator automatically?
Yes. When inserting a formula in Word, you can use the 'Number format' dropdown in the Formula dialog box to select a display format that includes commas, such as '#,##0.00'.
Will changing Windows regional settings affect my Excel spreadsheets?
Yes, Windows regional settings are system-wide. Updating the decimal and digit grouping separators will automatically apply to how numbers are displayed and calculated in Excel and other installed software.




