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ExcelHex2BinFunction
The Excel HEX2BIN Function
Related Function:
Bin2Hex Function
Basic Description
Hexadecimal (base 16), decimal (base 10), octal (base 8), and binary (base 2) are the most commonly
used numeral systems in engineering and computing. Therefore, Excel has provided functions to convert
numeric values to and from each of these systems.
The Excel Hex2Bin function converts a Hexadecimal (Base 16) number into a Binary (Base 2) number.
The format of the function is :
HEX2BIN( number, [places] )
Where the function arguments are :
number 
 
The hexadecimal number that is to be converted to binary.

[places] 
 
An optional argument, which specifies the number of characters that
you want the returned binary number to have.
If this is greater than the minimum, the binary number will be padded out using leading zeros.
If omitted, the returned binary uses the minimum number of places.

Note that the number argument must be no more than 10 characters (40 bits) long.
The most significant bit of this value denotes the sign of the number and the remaining 39 bits denote the magnitude.
Negative numbers are represented using
two's complement notation.
It should also be noted that, as hexadecimals use the numbers 09 and the characters af, they should be enclosed
in quotation marks when they are supplied to an Excel function. (eg. The hexadecimal 11a should be input as "11a").
+ Display Hexadecimal and Binary Summary:
Hexadecimal
The Hexadecimal
(Base 16) Numeral System uses the digits 09 and the characters af.
The following table shows the first 32 hexadecimal values, along with the equivalent decimal values:
Hexadecimal 
1 
2 
3 
4 
5 
6 
7 
8 
9 
a 
b 
c 
d 
e 
f 
10 
11 
12 
13 
14 
15 
16 
17 
18 
19 
1a 
1b 
1c 
1d 
1e 
1f 
20 
Decimal 
1 
2 
3 
4 
5 
6 
7 
8 
9 
10 
11 
12 
13 
14 
15 
16 
17 
18 
19 
20 
21 
22 
23 
24 
25 
26 
27 
28 
29 
30 
31 
32 
For further information on the hexadecimal numeral system, see the
Wikipedia Hexadecimal Page
Binary
The Binary
(Base 2) Numeral System uses the digits 0 & 1.
The following table shows the first 8 binary values, along with the equivalent decimal values:
Binary 
1 
10 
11 
100 
101 
110 
111 
1000 
Decimal 
1 
2 
3 
4 
5 
6 
7 
8 
For further information on the binary numeral system, see the
Wikipedia Binary Page
Hex2Bin Function Examples
The following spreadsheet shows examples of the Excel Hex2Bin function. The format of the function
is shown in the spreadsheet on the left and the result is shown in the spreadsheet on the right.
Formulas:

A 
1 
=HEX2BIN( "2" ) 
2 
=HEX2BIN( "0000000001" ) 
3 
=HEX2BIN( "2", 10 ) 
4 
=HEX2BIN( "FFFFFFFFF0" ) 
5 
=HEX2BIN( "1D" ) 

Results:

A 
1 
10 
2 
1 
3 
0000000010 
4 
1111110000 
5 
11101 

Note that, in the above example spreadsheet, the negative hexadecimal and binary numbers in cell A4 are represented by
two's complement notation.
Further information and examples of the Excel Hex2Bin function can be found on the
Microsoft Office website.
Hex2Bin Function Common Errors
If you get an error from your Excel Hex2Bin function this is likely to be one of the following :
Common Errors
#VALUE!



Occurs if the supplied [places] argument is not recognised as a number

#NUM!



Occurs if either:

 
the supplied number argument is not recognised as a hexadecimal number or contains more than 10 characters

or 



 
the resulting binary number requires more places than is specified by the supplied
[places] argument

or 



 
the supplied [places] argument ≤ 0


#NAME?



Occurs when Analysis ToolPak addin is not enabled in your Excel.
You will need to enable the addin if you want to use the Excel engineering functions.
+ Show How to Do This in Excel 2003:
 From the Tools dropdown menu, select the option AddIns ...
 An 'AddIns' window will pop up. From this, select the option Analysis ToolPak and click OK
+ Show How to Do This in Excel 2007:
 Click the Microsoft button on the top left of your spreadsheet and select
the Excel Options button
 From the menu on the left hand side, select AddIns
 In the 'Manage:' box, select Excel Addins and click Go...
 An 'AddIns' window will pop up. From this, select the option Analysis ToolPak and click OK
+ Show How to Do This in Excel 2010 or Excel 2013:
 Click the File tab (top left of your spreadsheet) and select Options
 From the menu on the left hand side, select AddIns
 If the window that pops up doesn't show the 'Addins' list, use the 'Manage:'
dropdown menu (at the bottom of the window) to select Excel Addins. Click Go...
 From the 'AddIns' window, select the option Analysis ToolPak and click OK
