# HEX2BIN function

This article describes the formula syntax and usage of the HEX2BIN function (function: A prewritten formula that takes a value or values, performs an operation, and returns a value or values. Use functions to simplify and shorten formulas on a worksheet, especially those that perform lengthy or complex calculations.) in Microsoft Excel.

## Description

Converts a hexadecimal number to binary.

## Syntax

`HEX2BIN(number, [places])`

The HEX2BIN function syntax has the following arguments (argument: A value that provides information to an action, an event, a method, a property, a function, or a procedure.):

• Number    Required. The hexadecimal number you want to convert. Number cannot contain more than 10 characters. The most significant bit of number is the sign bit (40th bit from the right). The remaining 9 bits are magnitude bits. Negative numbers are represented using two's-complement notation.
• Places    Optional. The number of characters to use. If places is omitted, HEX2BIN uses the minimum number of characters necessary. Places is useful for padding the return value with leading 0s (zeros).

## Remarks

• If number is negative, HEX2BIN ignores places and returns a 10-character binary number.
• If number is negative, it cannot be less than FFFFFFFE00, and if number is positive, it cannot be greater than 1FF.
• If number is not a valid hexadecimal number, HEX2BIN returns the #NUM! error value.
• If HEX2BIN requires more than places characters, it returns the #NUM! error value.
• If places is not an integer, it is truncated.
• If places is nonnumeric, HEX2BIN returns the #VALUE! error value.
• If places is negative, HEX2BIN returns the #NUM! error value.

## Example

The example may be easier to understand if you copy it to a blank worksheet.

1. Select the example in this article. If you are copying the example in Excel Online, copy and paste one cell at a time.
Important: Do not select the row or column headers.

Selecting an example from Help

1. Press CTRL+C.
2. Create a blank workbook or worksheet.
3. In the worksheet, select cell A1, and press CTRL+V. If you are working in Excel Online, repeat copying and pasting for each cell in the example.
Important: For the example to work properly, you must paste it into cell A1 of the worksheet.
4. To switch between viewing the results and viewing the formulas that return the results, press CTRL+` (grave accent), or on the Formulas tab, in the Formula Auditing group, click the Show Formulas button.

After you copy the example to a blank worksheet, you can adapt it to suit your needs.

A B
Formula Description (Result)
=HEX2BIN("F", 8) Converts hexadecimal F to binary, with 8 characters (00001111)
=HEX2BIN("B7") Converts hexadecimal B7 to binary (10110111)
=HEX2BIN("FFFFFFFFFF") Converts hexadecimal FFFFFFFFFF to binary (1111111111)

Applies to:
Excel 2010, Excel Web App, SharePoint Online for enterprises, SharePoint Online for professionals and small businesses