Please Note: This article is written for users of the following Microsoft Word versions: 2007, 2010, 2013, 2016, 2019, and 2021. If you are using an earlier version (Word 2003 or earlier), this tip may not work for you. For a version of this tip written specifically for earlier versions of Word, click here: Understanding Variables.

Understanding Variables

Written by Allen Wyatt (last updated January 23, 2021)
This tip applies to Word 2007, 2010, 2013, 2016, 2019, and 2021


Macros are written in a language called Visual Basic for Applications (VBA). VBA allows you to use quite a few different types of variables. Variables are nothing but names that represent other data. In general, you can store either numbers or characters in VBA variables. The language provides eleven specific types of variables you can use in your macros. These are known as data types, and you should use the data type that most closely matches the characteristics of the information you are storing in the variable. VBA supports the following data types:

  • Byte. A numeric variable within the range of 0 to 255.
  • Boolean. A variable with two possible values: True (-1) or False (0).
  • Integer. A numeric variable designed for whole numbers in the range of -32,768 to 32,767.
  • Long. A numeric variable designed for very large whole numbers.
  • Currency. A numeric variable designed for calculations involving monetary values.
  • Single. A numeric variable designed for single-precision floating-point values; accurate to about six or seven decimal places.
  • Double. A numeric variable designed for double-precision floating-point values; accurate to about 15 decimal places.
  • Date. A numeric variable designed to represent a date and time as a real number. The value to the left of the decimal point is the date, and the portion to the right of the decimal point is the time.
  • String. A variable that can contain any type of text or character you desire. You can assign a maximum of approximately 2 billion characters to a string variable.
  • Object. A variable that contains a pointer to a defined object within VBA.
  • Variant. A variable that can contain any type of data.

An additional data type (Decimal) is also specified in the VBA documentation, but is not currently supported by the language. VBA also allows you to define variable arrays, and you can also create user-defined data types. The full range of variable specifications is much too complex for a simple WordTip, however. If you need specific information about how to work with variables, refer to a good Visual Basic or VBA programming book. You can also look in the VBA on-line help under the Dim statement. (The Dim statement is used to declare the data type to be used for a variable.)

Note:

If you would like to know how to use the macros described on this page (or on any other page on the WordTips sites), I've prepared a special page that includes helpful information. Click here to open that special page in a new browser tab.

WordTips is your source for cost-effective Microsoft Word training. (Microsoft Word is the most popular word processing software in the world.) This tip (13210) applies to Microsoft Word 2007, 2010, 2013, 2016, 2019, and 2021. You can find a version of this tip for the older menu interface of Word here: Understanding Variables.

Author Bio

Allen Wyatt

With more than 50 non-fiction books and numerous magazine articles to his credit, Allen Wyatt is an internationally recognized author. He is president of Sharon Parq Associates, a computer and publishing services company. ...

MORE FROM ALLEN

Requiring Input

If you distribute a workbook that is used by others for data entry, you may want a way to make sure they fill in certain ...

Discover More

Specifying the Default Printer

Windows allows you to define many printers that can be used with your system. Chances are good that one of those printers ...

Discover More

Cannot Combine Two Tables

When working with tables, a common editing task is to combine two tables into one. Sometimes, though, you may run into ...

Discover More

Create Custom Apps with VBA! Discover how to extend the capabilities of Office 2013 (Word, Excel, PowerPoint, Outlook, and Access) with VBA programming, using it for writing macros, automating Office applications, and creating custom applications. Check out Mastering VBA for Office 2013 today!

More WordTips (ribbon)

Offering Options in a Macro

When creating macros, you often need to offer a series of choices to a user. This tip demonstrates how easy it is to ...

Discover More

Determining an ANSI Value

You may need to determine the numeric value of a character in a macro. You can do that using the Asc function, described ...

Discover More

Calculating a Future Date

Need to figure out a date a certain number of days, weeks, months, or years in the future? It's easy to do using the ...

Discover More
Subscribe

FREE SERVICE: Get tips like this every week in WordTips, a free productivity newsletter. Enter your address and click "Subscribe."

View most recent newsletter.

Comments

If you would like to add an image to your comment (not an avatar, but an image to help in making the point of your comment), include the characters [{fig}] (all 7 characters, in the sequence shown) in your comment text. You’ll be prompted to upload your image when you submit the comment. Maximum image size is 6Mpixels. Images larger than 600px wide or 1000px tall will be reduced. Up to three images may be included in a comment. All images are subject to review. Commenting privileges may be curtailed if inappropriate images are posted.

What is nine more than 7?

There are currently no comments for this tip. (Be the first to leave your comment—just use the simple form above!)


This Site

Got a version of Word that uses the ribbon interface (Word 2007 or later)? This site is for you! If you use an earlier version of Word, visit our WordTips site focusing on the menu interface.

Videos
Subscribe

FREE SERVICE: Get tips like this every week in WordTips, a free productivity newsletter. Enter your address and click "Subscribe."

(Your e-mail address is not shared with anyone, ever.)

View the most recent newsletter.