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Hex ( value as Integer ) As String

Returns as a String the hexadecimal version of the number passed.



Part Type Description
result String Value converted to hexadecimal.
value Integer The number to be converted to hexadecimal.


If the value is not a whole number, the decimal value will be truncated.

You can specify binary, hex, or octal numbers by preceding the number with the & symbol and the letter that indicates the number base. The letter b indicates binary, h indicates hex, and o indicates octal.

VB Compatibility Note: VB rounds the value to the nearest whole number so the Hex function will probably be changed in a future release to do this as well.


Below are examples of various numbers converted to hex:

Dim hexVersion As String
hexVersion=Hex(5) //returns "5"
hexVersion=Hex(75) //returns "4B"
hexVersion=Hex(256) //returns "100"

Formatting a hexadecimal number

It is often useful to keep the same number of digits to represent a hexadecimal number, e.g. 8 characters for a 32 bits hexadecimal number. You can achieve such a task with the following code:

Function Hex32( value As Int32 ) As String
Const prefix="00000000" //A 32-bits value is 8 digits long at max

Return Right( prefix + Hex( value ), 8 ) //We always return 8 characters
End Function

For an Int64 integer, you can adapt it as:

Function Hex32( value As Int32 ) As String
Const prefix="0000000000000000" //A 64-bits value is 16 digits long at max

Return Right( prefix + Hex( value ), 16 ) //We always return 16 characters
End Function

Converting a hexadecimal string to a number

See example in &h.

See Also

&b, &c, &h, &o, &u literals; Bin, DecodeHex, EncodeHex, Oct functions.

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