Calculation Issues

How to Stop Excel from Changing Whole Numbers to Decimals on Mac

Emma BrownEmma Brown Nov 3, 2026 869 views

Question details

Users find that entering a whole number into an Excel cell automatically converts it into a decimal or hundredth (for instance, typing '2' displays as '0.02').

How to Stop Excel from Changing Whole Numbers to Hundredths on Mac
Product
Microsoft Excel
Device & OS
Mac
Scenario
Entering standard whole numbers into spreadsheet cells.
Observed behavior
Excel automatically inserts a decimal point, dividing the entered whole number by 100 and shifting it to the hundredths place.
Before you start

Determine if the problem applies to newly typed numbers across the entire Excel application or if it is restricted to specific pre-formatted cells. This helps identify whether you need to change a global app preference or simply adjust local cell formatting.

Solution 1Recommended

Disable Automatic Decimal Insertion in Mac Preferences

Turn off the application-wide setting that automatically inserts a decimal point into all newly typed numbers.

This global preference affects how Excel interprets all numeric entries. Turning it off stops the automatic decimal conversion for new inputs, but it will not revert numbers that have already been converted.

1
Open Excel Preferences

Launch Microsoft Excel on your Mac, click on 'Excel' in the top Apple menu bar, and select 'Preferences'.

2
Access Edit Settings

In the Preferences dialog window, look under the Authoring section and click on 'Edit'.

3
Clear the Decimal Setting

Locate and uncheck the box labeled 'Display this number of decimal places'. Close the window to save your changes.

Disable Automatic Decimal Insertion in Mac Preferences
Correcting Existing Entries: Previously entered numbers will remain as decimals. You will need to re-enter them or mathematically multiply the affected cells by 100 to restore them to whole numbers.
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Frequently Asked Questions

Why do my numbers stay as decimals after turning off the setting?

Disabling the automatic decimal setting only affects numbers you type after making the change. To fix existing data, you must either type the numbers again or copy a separate cell containing the number 100, use 'Paste Special', and select 'Multiply' over the affected decimal cells.

Can I set a specific number of decimal places for just one column instead of the whole application?

Yes. Instead of changing the global edit preference, you can select the specific column, right-click, and choose 'Format Cells'. Under the Number tab, manually define the exact decimal places required for that column only.

Is there a keyboard shortcut to decrease decimals on Mac?

There is no default single-key shortcut to decrease decimals in Excel for Mac. However, you can add the 'Decrease Decimal' command to your Quick Access Toolbar or use the button directly from the Home tab for faster adjustments.