Skip to content
Free Excel Tutorials
  • Home
  • Excel For Beginners
  • Excel Intermediate
  • Advanced Excel For Experts

Data Analysis

  • Conditional Formatting Data bars Examples in Excel
  • Conditional Formatting Icon Sets Examples in Excel
  • Number and Text Filters Examples in Excel
  • How to Create Area Chart in Excel
  • How to create running total in an Excel Table

References

  • Last row number in range
  • How to use Excel LOOKUP Function
  • Vlookup Examples in Excel
  • How to get address of first cell in range in Excel
  • How to get last row in numeric data in Excel

Data Validations

  • Excel Data validation allow weekday only
  • Excel Data validation no punctuation
  • Excel Data validation date in next 30 days
  • Excel Data validation number multiple 100
  • Excel Data validation specific characters only

Excel Data validation allow numbers only

by

This tutorial shows how to create Data validation to allow numbers only in Excel using the example below;

Formula

=ISNUMBER(A1)

Explanation

Note: Excel has several built-in data validation rules for numbers. This page explains how to create a your own validation rule based on a custom formula.

To allow only numbers in a cell, you can use data validation with a custom formula based on the ISNUMBER function.

In the example shown, the data validation applied to C5:C9 is:

=ISNUMBER(C5)

How this formula works

Data validation rules are triggered when a user adds or changes a cell value.

The ISNUMBER function returns TRUE when a value is numeric and FALSE if not. As a result, all numeric input will pass validation.

Be aware that numeric input includes dates and times, whole numbers, and decimal values.

Note:  Cell references in data validation formulas are relative to the upper left cell in the range selected when the validation rule is defined, in this case C5.

Post navigation

Previous Post:

COSH function: Description, Usage, Syntax, Examples and Explanation

Next Post:

Excel Data validation require unique number

Leave a Reply Cancel reply

Your email address will not be published. Required fields are marked *

Learn Basic Excel

Ribbon
Workbook
Worksheets
Format Cells
Find & Select
Sort & Filter
Templates
Print
Share
Protect
Keyboard Shortcuts

Categories

  • Charts
  • Data Analysis
  • Data Validation
  • Excel Functions
    • Cube Functions
    • Database Functions
    • Date and Time Functions
    • Engineering Functions
    • Financial Functions
    • Information Functions
    • Logical Functions
    • Lookup and Reference Functions
    • Math and Trig Functions
    • Statistical Functions
    • Text Functions
    • Web Functions
  • Excel VBA
  • Excel Video Tutorials
  • Formatting
  • Grouping
  • Others

Logical Functions

  • NOT function: Description, Usage, Syntax, Examples and Explanation
  • IF with boolean logic in Excel
  • FALSE function: Description, Usage, Syntax, Examples and Explanation
  • Excel If, Nested If, And/Or Criteria Examples
  • IFERROR function: Description, Usage, Syntax, Examples and Explanation

Date Time

  • Assign points based on late time in Excel
  • Series of dates by day
  • How to get number of days, weeks, months or years between two dates in Excel
  • DATE function: Description, Usage, Syntax, Examples and Explanation
  • DATEDIF function: Description, Usage, Syntax, Examples and Explanation

Grouping

  • How to randomly assign people to groups in Excel
  • Group times into unequal buckets in Excel
  • Categorize text with keywords in Excel
  • If cell contains one of many things in Excel
  • Calculate conditional mode with criteria in Excel

General

  • Customize Ribbon In Excel
  • How to choose page/paper size in Excel before Printing
  • 231 Keyboard Shortcut Keys In Excel
  • Print Excel Sheet In Landscape Or Portrait
  • How to get amount with percentage in Excel
© 2025 xlsoffice . All Right Reserved. | Teal Smiles | Abbreviations And Their Meaning