FormulaCraft

How to format negative numbers in red in Excel and Google Sheets

Excel & Google Sheets
=A2<0

Verified example

Computed by a real spreadsheet engine on the sample data below.

SalesProfit
Q1-150
Q2200
Q3-50
Q4300

=A2<0FALSE

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Step by step

  1. 1Select the range of cells you want to format (e.g., A2:B5).
  2. 2Go to the Home tab, click on Conditional Formatting, and choose New Rule.
  3. 3In Excel, select 'Format only cells that contain'. In Google Sheets, choose 'Custom formula is'.
  4. 4Enter the formula =A2<0 (adjust the cell reference as needed).
  5. 5Click Format, set the font color to red, and click OK.

Tips

Working on a sheet you inherited? Run the Auditor on the whole file first — it flags every #REF!, #N/A, broken column pattern, and inconsistent formula in seconds, free, no signup.

Frequently asked

Can I use this method for entire columns?

Yes, select the entire column (e.g., A:A) before applying the rule.

What if my data includes zero values?

The rule will only affect negative numbers, leaving zeros and positives unchanged.

Is there a way to apply this to multiple sheets at once?

No, you must apply the rule individually to each sheet.

Formulas used

Written and reviewed by FormulaCraft Team. Each formula on this page is run through our verification engine before publishing.

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