The Excel DEC2HEX Function

Related Function:
Hex2Dec 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 Dec2Hex function converts a decimal number into a Hexadecimal (Base 16) number.

The format of the function is :

DEC2HEX( number, places )

Where the number argument is the decimal number that is to be converted to hexadecimal, and the places argument is the number of characters that you want the returned hexadecimal number to have. If this is greater than the minimum, the hexadecimal number will be padded out using leading zeros.

If the places argument is omitted, then by default, the minimum number of places is used in the returned hexadecimal number.


  +   Display Hexadecimal Summary:


Dec2Hex Function Examples

The following spreadsheet shows examples of the Excel Dec2Hex function. The format of the functions are shown in the spreadsheet on the left and the results are shown in the spreadsheet on the right.

 Formulas:
  A
1 =DEC2HEX( 10 )
2 =DEC2HEX( 31 )
3 =DEC2HEX( 16, 10 )
4 =DEC2HEX( -16 )
5 =DEC2HEX( 273 )
 Results:
  A B
1 A  
2 1F   Result is   1*16 + 15
3 0000000010   Result is   1*16 + 0
4 FFFFFFFFF0   Result is   -16^9 + 15*16^8 + 15*16^7 + ... + 15*16 + 0
5 111   Result is   1*16^2 + 1*16 + 1

Note that, in the above example spreadsheet, the negative hexadecimal number in cell A4 is represented by two's complement notation.


Further information and examples of the Excel Dec2Hex function can be found on the Microsoft Office website.


Dec2Hex Function Common Errors

If you get an error from your Excel Dec2Hex function this is likely to be one of the following :

Common Errors
#VALUE! - Occurs if either the supplied number argument or the supplied [places] argument is not numeric.
#NUM! - Occurs if the supplied [places] argument ≤ 0.
#NAME? -

Occurs when Analysis ToolPak add-in is not enabled in your Excel.
You will need to enable the add-in if you want to use the Excel engineering functions.

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